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Rabenstein A, Czermak L, Fischer E, Kahnert K, Pogarell O, Jörres RA, Nowak D, Rüther T. Implications of Switching from Conventional to Electronic Cigarettes on Quality of Life and Smoking Behaviour: Results from the EQualLife Trial. Eur Addict Res 2024; 30:207-215. [PMID: 38626733 DOI: 10.1159/000536255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 01/02/2024] [Indexed: 04/18/2024]
Abstract
INTRODUCTION Electronic cigarettes and "vaping" have become popular since their appearance in Europe and the USA in approximately 2006. They are often perceived as having fewer health risks than conventional cigarettes, which makes them of interest as a support tool in smoking cessation. However, its efficacy regarding cessation or reduction of smoking under real-life conditions remains controversial. Our objective was to clarify this question in an observational study of smoking habits after initiating vaping without targeted intervention, as compared to a validated cessation programme. METHODS From October 2015 to April 2018, 80 subjects (60 in the e-cigarette group and 20 in the supervised smoking cessation group) were included in two trial visits, one at the start of the trial and the second after 3 months, plus 4 questionnaire surveys: at the start of the trial and after a 1, 2, and 3 month period. The questionnaire included a nicotine use inventory, a modified Fagerström test for nicotine dependence, and the WHO-QOL-BREF survey. RESULTS E-cigarettes were effective, leading to a significant (p < 0.03) reduction (p < 0.03) in tobacco consumption and nicotine dependence, with an abstinence rate of 43% after 3 months. Compared to participants in the smoking cessation programme, their use was not associated with an improvement in quality of life during the quitting attempt, and there were no significant differences in clinical symptoms between groups. The reduction in nicotine dependence was more pronounced (p < 0.012) for the smoking cessation programme, with higher abstinence rates (p = 0.011 after 12 weeks) and lower (p < 0.003) remaining tobacco consumption compared to electronic cigarettes. DISCUSSION/CONCLUSIONS The use of electronic cigarettes reduced nicotine dependence and tobacco consumption, but a supervised smoking cessation programme was superior in terms of achieved cessation in both regards. Electronic cigarettes did not improve the quality of life. Since e-cigarettes could be associated with long-term health risks, their usefulness in smoking cessation remains questionable, and a professionally guided and validated smoking cessation programme still appears to be superior and preferable, in terms of achieved cessation. Although this trial is limited regarding the number of participants and follow-up time, it highlights the need for additional, large clinical trials evaluating the efficacy of e-cigarettes for smoking cessation in comparison to a professionally guided smoking cessation programme.
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Affiliation(s)
- Andrea Rabenstein
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Munich, Germany
| | - Lilian Czermak
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Munich, Germany
| | - Elke Fischer
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, German Center for Lung Research (DZL Munich), CPD (Comprehensive Pneumology Center Munich), Munich, Germany
| | - Kathrin Kahnert
- Department of Medicine V, LMU University Hospital, LMU Munich, Comprehensive Pneumology Center, Member of the German Center for Lung Research (DZL), Munich, Germany
- MediCenter Germering, Germering, Germany
| | - Oliver Pogarell
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Munich, Germany
| | - Rudolf A Jörres
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, German Center for Lung Research (DZL Munich), CPD (Comprehensive Pneumology Center Munich), Munich, Germany
| | - Dennis Nowak
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, LMU University Hospital, LMU Munich, German Center for Lung Research (DZL Munich), CPD (Comprehensive Pneumology Center Munich), Munich, Germany
| | - Tobias Rüther
- Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, Munich, Germany
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Vanderkam P, Bonneau A, Kinouani S, Dzeraviashka P, Castera P, Besnier M, Binder P, Doux N, Jaafari N, Lafay-Chebassier C. Duration of the effectiveness of nicotine electronic cigarettes on smoking cessation and reduction: Systematic review and meta-analysis. Front Psychiatry 2022; 13:915946. [PMID: 35990084 PMCID: PMC9386078 DOI: 10.3389/fpsyt.2022.915946] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
Background The success of pharmacotherapies for smoking cessation in real-life remains limited, with a significant number of long-term relapses. Despite first promising results, the duration of the effectiveness of electronic cigarettes is still unknown. Our objective was to assess the duration of the effectiveness of electronic cigarettes on smoking cessation and reduction in daily smokers. Methods The databases EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), ClinicalTrials.gov and PUBMED were consulted until March 23, 2022. We selected only randomized controlled trials with daily adult smokers. The intervention was the nicotinic electronic cigarette vs. non-nicotine electronic cigarette or other validated pharmacotherapies (varenicline, bupropion and nicotine replacement therapy). The minimum duration of the intervention was 3 months, with a follow-up of at least 6 months. Two independent reviewers used the PRISMA guidelines. The primary endpoint was smoking cessation at the end of the intervention and follow-up periods confirmed by a reduction in expired CO < 10 ppm. The reduction was defined as at least 50% of the initial consumption or by a decrease of daily mean cigarette consumption at the end of the intervention and follow-up periods. Results Abstinence at the end of the intervention and follow-up periods was significantly higher in the nicotine electronic cigarette group, compared to nicotine replacement therapy (NRT) [respectively: RR: 1.37 (CI 95%: 1.32-2.93) and RR: 1.49 (CI 95%: 1.14-1.95)] and to the non-nicotine electronic cigarette condition [respectively: RR: 1.97 (CI 95%: 1.18-2.68) and RR: 1.66 (CI 95%: 1.01-2.73)]. With regard to smoking reduction, the electronic cigarette with nicotine is significantly more effective than NRT at the end of the intervention and follow-up periods [respectively RR: 1.48 (CI 95%: 1.04-2.10) and RR: 1.47 (CI 95%: 1.18-1.82)] and non-nicotine electronic cigarette in the long term [RR: 1.31 (CI 95%: 1.02-1.68)]. Conclusions This meta-analysis shows the duration of the effectiveness of the nicotine electronic cigarette vs. non-nicotine electronic cigarette and NRT on smoking cessation and reduction. There are still uncertainties about the risks of its long-term use and its potential role as a gateway into smoking, particularly among young people.
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Affiliation(s)
- Paul Vanderkam
- INSERM U-1084, Experimental and Clinical Neurosciences Laboratory, University of Poitiers, Poitiers, France
- Clinic Research Unit, Centre Hospitalier Henri Laborit, Poitiers, France
- Department of General Practice, University of Bordeaux, Bordeaux, France
| | | | - Shérazade Kinouani
- Bordeaux Population Health Research Center, Univ. Bordeaux, Inserm, Team HEALTHY, UMR 1219, Bordeaux, France
| | | | - Philippe Castera
- Department of General Practice, University of Bordeaux, Bordeaux, France
| | - Marc Besnier
- Department of General Practice, Poitiers, France
| | | | - Nicolas Doux
- Service Commun de Documentation, Bibliothèque Universitaire de Médecine et de Pharmacie, University of Poitiers, Poitiers, France
| | - Nematollah Jaafari
- Clinic Research Unit, Centre Hospitalier Henri Laborit, Poitiers, France
| | - Claire Lafay-Chebassier
- INSERM U-1084, Experimental and Clinical Neurosciences Laboratory, University of Poitiers, Poitiers, France
- Department of Clinical Pharmacology, Poitiers University Hospital, Poitiers, France
- INSERM, Clinical Investigation Center CIC 1402, University of Poitiers, CHU Poitiers, Poitiers, France
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Kraus L, Möckl J, Lochbühler K, Rauschert C, Seitz NN, Olderbak S. Changes in the Use of Tobacco, Alternative Tobacco Products, and Tobacco Alternatives in Germany. DEUTSCHES ARZTEBLATT INTERNATIONAL 2022; 119:535-541. [PMID: 36384922 PMCID: PMC9677538 DOI: 10.3238/arztebl.m2022.0252] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/01/2022] [Accepted: 06/08/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Due to the increasing use of alternative tobacco products (waterpipes, heat-not-burn) and tobacco alternatives (e-cigarettes), we studied recent changes in the prevalence of conventional tobacco use and alternative products. METHODS Data come from ten waves of the Epidemiological Survey of Substance Abuse (ESA) from 1995 to 2021, with representative samples collected via paperpencil questionnaires, telephone interviews, or online. We compared the prevalence of conventional tobacco use and alternative products by gender and age (18-24, 25-39, 40-59 years). RESULTS In all age groups, the use of conventional tobacco products decreased. The prevalence of the exclusive use of one of the three alternative products differed statistically significantly between age groups and in 2021 was higher for ages 18-24 (females: 11.1%, males: 12.4%) compared to ages 25-39 (females: 2.9%; males: 4.9%) and ages 40-59 (females: 1.4%; males: 2.0%). The use of alternative products was mainly due to the exclusive use of waterpipes among individuals aged 18 to 24 and 25 to 39 and the exclusive use of e-cigarettes among individuals aged 40 to 59. CONCLUSION The higher prevalence of alternative product use among young adults implies a turning point that needs to be considered in prevention. Because of the addictive potential of these products, young adults can be expected to maintain their use into middle and older adulthood. There is a need to monitor the use of alternative products, identify the risks associated with them, and develop effective prevention and cessation interventions for adults.
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Affiliation(s)
- Ludwig Kraus
- IFT Institut für Therapieforschung, Munich, Germany,Department of Public Health Sciences, Stockholm University, Sweden,Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary,*IFT Institut für Therapieforschung Leopoldstr. 175, 80804 Munich, Germany
| | - Justin Möckl
- IFT Institut für Therapieforschung, Munich, Germany
| | | | | | | | - Sally Olderbak
- IFT Institut für Therapieforschung, Munich, Germany,Psychology Department, University of Arizona, Tucson, USA
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Al-Hamdani M, Manly E. Harm reduction in tobacco control: where do we draw the line? J Public Health Policy 2022; 43:149-154. [PMID: 34997211 DOI: 10.1057/s41271-021-00327-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2021] [Indexed: 11/21/2022]
Abstract
With substance abuse, harm reduction refers to reducing or replacing use of a harmful product with a less risky agent. But many advertised "non-pharmaceutical" harm reduction alternatives for tobacco smoking are problematic. Studies have revealed inconclusive results using agents including chewing tobacco and e-cigarettes to quit smoking and have demonstrated continued use of these agents. Many smoking harm reduction agents pose other health risks not found in traditional tobacco smoking. Given these limitations, efforts should focus on promoting nicotine replacement therapy, and other pharmacologic agents with a better chance of producing sustained smoking cessation. To address the harmful nature of many tobacco replacement products, public health should focus on regulating these alternatives with the same stringency as tobacco, and social marketing efforts should target evidence-based and safer pharmaceutical grade or behavioural alternatives.
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Affiliation(s)
| | - Eden Manly
- McMaster University, Hamilton, ON, Canada
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Alqahtani MM, Alanazi AM, Pavela G, Dransfield MT, Wells JM, Lein DH, Hendricks PS. Binge Drinking Moderates the Association Between Chronic Lung Disease and E-Cigarette Use. Respir Care 2021; 66:936-942. [PMID: 33688091 DOI: 10.4187/respcare.08559] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND There is a paucity of research on e-cigarette use among adults with chronic lung disease. Accordingly, little is known about the factors that may contribute to e-cigarette use in this population. The purpose of this study was to evaluate the relationship between chronic lung disease and e-cigarette use and to determine whether binge drinking moderates this relationship. METHODS Data were derived from the 2018 Behavioral Risk Factor Surveillance System (BRFSS). Logistic regression was used to test the association between chronic lung disease status and e-cigarette use, controlling for demographic variables and chronic health conditions. We conducted moderation analyses to test the hypothesis that the association between chronic lung disease and lifetime e-cigarette use would be modified by binge drinking. RESULTS The prevalence of lifetime e-cigarette use was higher among adults with chronic lung disease than among those without, and more frequent binge drinking was associated with an increased likelihood of lifetime e-cigarette use independent of chronic lung disease status. Binge drinking moderated the relationship between chronic lung disease and lifetime use of e-cigarettes such that the association between chronic lung disease and e-cigarette use was weaker among those who engaged in more episodes of binge drinking in the past 30 d. Among those without chronic lung disease, binge drinking was associated with an increased likelihood of e-cigarette use. CONCLUSIONS E-cigarette use appears to be more common among adults with chronic lung disease. Although binge drinking was positively associated with e-cigarette use, more frequent binge drinking weakened the relationship between chronic lung disease and e-cigarette use. Though future studies are needed to determine precisely how binge drinking affects this association, it is possible that individuals with chronic lung disease who binge drink more frequently use e-cigarettes less frequently, despite an increased likelihood of having ever used an e-cigarette. (ClinicalTrials.gov registration NCT04135404.).
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Affiliation(s)
- Mohammed M Alqahtani
- Respiratory Care Department, King Saud Abdul-Aziz University for Health Science, Riyadh, Saudi Arabia.
- University of Ala bama at Birmingham, Birmingham, Ala bama
| | - Abdullah M Alanazi
- Respiratory Care Department, King Saud Abdul-Aziz University for Health Science, Riyadh, Saudi Arabia
- University of Ala bama at Birmingham, Birmingham, Ala bama
| | - Gregory Pavela
- Department of Health Behavior, University of Ala bama at Birmingham, Birmingham, Alabama
| | | | - J Michael Wells
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Donald H Lein
- Department of Physical Therapy, University of Alabama at Birmingham, Birmingham, Alabama
| | - Peter S Hendricks
- Department of Health Behavior, University of Ala bama at Birmingham, Birmingham, Alabama
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Alqahtani MM, Alanazi AMM, Almutairi AS, Pavela G. Electronic cigarette use is negatively associated with body mass index: An observational study of electronic medical records. Obes Sci Pract 2020; 7:226-231. [PMID: 33841892 PMCID: PMC8019282 DOI: 10.1002/osp4.468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/01/2020] [Accepted: 11/03/2020] [Indexed: 12/04/2022] Open
Abstract
Objective Vaping is advertised as a method to mitigate weight gain after smoking cessation; however, while there is an established inverse association between conventional tobacco use and body mass index (BMI), there is little research on the relationship between e‐cigarettes and BMI. This research tested whether e‐cigarette use was associated with BMI. Methods A secondary data analysis of 207,117 electronic medical records from the UAB was conducted. Patient data from 1 September 2017 through 1 June 2018 were extracted. To be included in the analysis, a patient's record had to include measures of e‐cigarette use and key sociodemographic information. Ordinary least squares regression was used to test the association between e‐cigarette use and BMI, controlling for covariates; unconditional quantile regression was used to determine whether the association varied by BMI quantile. For comparison with tobacco smoking, the association between current tobacco smoking and BMI was estimated in a sample from the same population. Results Respondents in the sample had an average BMI of 30.8 and average age of 50.0 years when BMI was measured. The sample was 51% female, 49.7% white, 46.7% black, and 1.0% Hispanic; 16.4% of the sample had less than a college education and approximately 5% reported currently using e‐cigarettes. Individuals who reported using e‐cigarettes had, on average, a lower BMI compared to those who did not report currently using e‐cigarettes; results indicated that this association did not significantly vary by BMI quantile. Individuals who reported being current smokers had a lower BMI, on average. Conclusion These findings suggest that using e‐cigarettes is associated with a lower BMI in a population of individuals seeking health care, consistent with the association between conventional tobacco use and BMI. This study is a springboard for future research investigating the associations between e‐cigarette use, BMI, and risk of obesity in the general population.
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Affiliation(s)
- Mohammed M Alqahtani
- King Saud Abdul-Aziz University for Health Sciences Riyadh Saudi Arabia.,Department of Rehabilitation Science School of Health Profession University of Alabama at Birmingham Birmingham Alabama USA
| | - Abdullah M M Alanazi
- King Saud Abdul-Aziz University for Health Sciences Riyadh Saudi Arabia.,Department of Rehabilitation Science School of Health Profession University of Alabama at Birmingham Birmingham Alabama USA
| | - Abdulaziz S Almutairi
- Immunology Department School of Biomedical Science University of Alabama at Birmingham Birmingham Alabama USA
| | - Gregory Pavela
- Department of Health Behavior School of Public Health University of Alabama at Birmingham Birmingham Alabama USA
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Morgenstern M, Nies A, Goecke M, Hanewinkel R. E-Cigarettes and the Use of Conventional Cigarettes. DEUTSCHES ARZTEBLATT INTERNATIONAL 2019; 115:243-248. [PMID: 29716689 DOI: 10.3238/arztebl.2018.0243] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/02/2017] [Accepted: 01/23/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND In 2015, 12.1% of 12- to 17-year-olds in Germany had reportedly already tried e-cigarette smoking at least once. We carried out a study of the "gateway" hypothesis, according to which the use of e-cigarettes can motivate adolescents to start smoking conventional cigarettes. METHODS During the 2015/2016 school year, 2186 tenth-graders in the German states of Lower Saxony and Schleswig-Holstein who had never smoked conventional cigarettes before took part in a survey over a 6-month period (mean age 15.5 years, standard deviation 0.65; 53.6% female). RESULTS 14.3% of the survey population (313 adolescents) said at the start of the survey period that they had already tried e-cigarettes at least once. By the end of the survey period, 12.3% (268) of those who had never smoked before had begun to experiment with conventional cigarettes. The risk of beginning such experimentation was 2.2 times higher among e-cigarette users. This association remained (relative risk = 2.18 [1.65; 2.83]) after statistical control for age, sex, state, immigrant background, type of school, socioeconomic status, various personality traits (sensation-seeking, impulsivity, anxiety, hopelessness, extraversion, agreeableness, conscientiousness, neuroticism, openness), and the use of alcohol, cannabis, and other illicit drugs. Further analysis revealed that the association between the use of e-cigarettes and the onset of conventional cigarette smoking was stronger among adolescents with low sensation-seeking scores and without any experience of alcohol intoxication. CONCLUSION Among adolescents who have never smoked, experimentation with conventional cigarettes is more common in those who have used e-cigarettes. This effect seems to be stronger among adolescents who, in general, have a lower risk of starting to smoke. The 6-month observation period of this study is too short to allow any inference regarding a connection between e-cigarette use and the development of tobacco dependence.
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Affiliation(s)
- Matthis Morgenstern
- Institute for Therapy and Health Research, IFT-Nord gGmbH, Kiel, Germany; Federal Center for Health Education, Cologne, Germany
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Eichler M, Blettner M, Singer S. The Use of E-Cigarettes. DEUTSCHES ARZTEBLATT INTERNATIONAL 2016; 113:847-854. [PMID: 28098063 PMCID: PMC5273587 DOI: 10.3238/arztebl.2016.0847] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 07/15/2016] [Accepted: 09/12/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND Electronic cigarettes (e-cigarettes) are a consumer product whose benefits and risks are currently debated. Advocates of the "tobacco harm reduction" strategy emphasize their potential as an aid to smoking cessation, while advocates of the precautionary principle emphasize their risks instead. There have been only a few studies to date on the prevalence of e-cigarette use in Germany. METHODS In May 2016, in collaboration with Forsa, an opinion research firm, we carried out a survey among 4002 randomly chosen persons aged 14 and older, asking them about their consumption of e-cigarettes with and without nicotine, reasons for using e-cigarettes, plans for future use, estimation of danger compared to that of tobacco products, smoking behavior, and sociodemographic features. RESULTS 1.4% of the respondents used e-cigarettes regularly, and a further 2.2% had used them regularly in the past. 11.8% had at least tried them, including 32.7% of smokers and 2.3% of persons who had never smoked. 24.5% of ex-smokers who had quit smoking after 2010 had used e-cigarettes at least once. 20.7% of the respondents considered electronic cigarettes less dangerous than conventional cigarettes, 46.3% equally dangerous, and 16.1% more dangerous. An extrapolation of these data to the general population suggests that about one million persons in Germany use e-cigarettes regularly and another 1.55 million have done so in the past. CONCLUSION The consumption of electronic cigarettes in Germany is not very widespread, but it is not negligible either. Nearly 1 in 8 Germans has tried e-cigarettes at least once. Regular consumers of e-cigarettes are almost exclusively smokers and ex-smokers.
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Affiliation(s)
- Martin Eichler
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), Universitätsmedizin Mainz; Department of Medical Psychology and Medical Sociology, Universitätsklinikum Leipzig; German Cancer Consortium (DKTK), Frankfurt/Mainz
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Safka KA, McIvor RA. Non-pharmacological management of chronic obstructive pulmonary disease. THE ULSTER MEDICAL JOURNAL 2015; 84:13-21. [PMID: 25964698 PMCID: PMC4330800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Accepted: 11/11/2014] [Indexed: 11/12/2022]
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Nowak D. In reply. DEUTSCHES ARZTEBLATT INTERNATIONAL 2014; 111:682. [PMID: 25346362 PMCID: PMC4215090 DOI: 10.3238/arztebl.2014.0682b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- Dennis Nowak
- Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin Klinikum der Universität München
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Wessler I. Tumor-promoting activities of nicotine not addressed. DEUTSCHES ARZTEBLATT INTERNATIONAL 2014; 111:682. [PMID: 25346361 PMCID: PMC4215089 DOI: 10.3238/arztebl.2014.0682a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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