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Yata T, Aoyama N, Fujii T, Kida S, Taniguchi K, Iwane T, Tamaki K, Minabe M, Komaki M. Decreased Tongue-Lip Motor Function in Japanese Population with Low Taste Sensitivity: A Cross-Sectional Study. J Clin Med 2024; 13:4711. [PMID: 39200853 PMCID: PMC11355394 DOI: 10.3390/jcm13164711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2024] [Revised: 08/04/2024] [Accepted: 08/08/2024] [Indexed: 09/02/2024] Open
Abstract
Background/Objectives: Taste disorders have a negative impact on meal enjoyment, which is essential for maintaining adequate nutrition and quality of life. Japan is a rapidly aging society with an increasing number of individuals with taste disorders. However, despite the increasing prevalence of taste disorders, the correlation between oral frailty and taste sensitivity remains largely unknown. The objective of this study was to assess the relationship between oral health status and taste sensitivity among the Japanese population. Methods: Participants were recruited from Kanagawa Dental University Hospital Medical-Dental Collaboration Center between 2018 and 2021. The exclusion criteria were severe systemic infections, pregnancy, or lactation. Clinical examinations, oral function assessments, and taste tests were conducted using tap water and 1% sweet, 0.3% salty, 0.03% umami, and 0.1% umami tastants. The relationships between oral function, systemic indicators, and taste sensitivity were statistically evaluated. Results: Of the 169 participants included in this cross-sectional study, 39.6% were male and 60.4% were female (median age, 68 years). Participants with low taste sensitivity showed a decline in tongue-lip motor function, independent of age, sex, or smoking status. A multiple logistic regression analysis conducted using two age categories-younger than 65 years and older than 65 years-revealed an association between tongue-lip motor function and taste sensitivity among participants younger than 65 years. Conclusions: Decreased taste sensitivity is associated with tongue-lip motor function. Therefore, the early maintenance of oral function and taste sensitivity may be beneficial for optimal tongue-lip motor function.
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Affiliation(s)
- Tomomi Yata
- Department of Periodontology, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan; (T.Y.); (T.F.); (S.K.); (K.T.); (M.K.)
| | - Norio Aoyama
- Department of Periodontology, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan; (T.Y.); (T.F.); (S.K.); (K.T.); (M.K.)
- Department of Education Planning, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan
| | - Toshiya Fujii
- Department of Periodontology, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan; (T.Y.); (T.F.); (S.K.); (K.T.); (M.K.)
| | - Sayuri Kida
- Department of Periodontology, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan; (T.Y.); (T.F.); (S.K.); (K.T.); (M.K.)
| | - Kentaro Taniguchi
- Department of Periodontology, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan; (T.Y.); (T.F.); (S.K.); (K.T.); (M.K.)
| | - Taizo Iwane
- Center for Innovation Policy, Graduate School of Health Innovation, Kanagawa University of Human Services, 3-25-10 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Kanagawa, Japan;
| | - Katsushi Tamaki
- Department of Functional Recovery of TMJ and Occlusion, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan;
| | - Masato Minabe
- Bunkyou Dori Dental Clinic, 2-4-1 Anagawa, Inage-ku, Chiba 263-0024, Chiba, Japan;
- Department of Environmental Pathology, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan
| | - Motohiro Komaki
- Department of Periodontology, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka 238-8580, Kanagawa, Japan; (T.Y.); (T.F.); (S.K.); (K.T.); (M.K.)
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Min SY, Pang NS, Kim YR, Jeong SA, Jung BY. Factors associated with age-related changes in oral diadochokinesis and masticatory function in healthy old adults. BMC Oral Health 2024; 24:462. [PMID: 38627762 PMCID: PMC11020950 DOI: 10.1186/s12903-024-04214-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/01/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND This cross-sectional study aimed to identify factors associated with age-related changes in masticatory performance (MP) and oral diadochokinesis (ODK) and to provide normal values in healthy old adults for the diagnosis of oral frailty. METHODS A total of 385 participants were divided into three age groups (Gr1-3): 20-64 years, 65-74 years, and ≥ 75 years. To investigate tongue-lip motor function, ODK was assessed as the number of repetitions of the monosyllables /pa/ta/ka/. Four questionnaires were used to assess subjective masticatory ability, cognitive ability, and psychological status. MP, bite force, and occlusal area were tested to assess dynamic objective masticatory function, and the number of remaining teeth and functional tooth pairs were determined to assess static objective masticatory function. Handgrip strength (HG), oral dryness, and tongue pressure (TP) were assessed to identify influencing factors. Intergroup differences were evaluated by ANOVA and the Kruskal‒Wallis test, and correlations between ODK and orofacial factors were evaluated. RESULTS This study revealed significant age-related declines in TP, HG, and ODK, especially after 65 years of age. Factors affecting MP were posterior teeth, the Eichner index, bite force, occluding area, the Korean Mini-Mental State Examination (KMMSE) score, and ODK. Each ODK syllable was associated with different factors, but common factors associated with ODK were MP, HG, and PHQ-9 score. For the syllables /pa/ta/, the Eichner Index, TP, and oral dryness were also associated. For the syllable /ka/ in Gr3, MP, TP, HG, oral dryness, and the KMMSE score were associated. CONCLUSIONS These results could provide practical guidelines for oral rehabilitation in old adults and contribute to improving the understanding of age-related changes in oral function and the multidimensional nature of masticatory dynamics.
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Affiliation(s)
- Se-Yeon Min
- Department of Dentistry, Graduate School, Yonsei University, Seoul, 03722, Korea
| | - Nan-Sim Pang
- Department of Advanced General Dentistry College of Dentistry, Yonsei University, 50 Yonseiro, Seodaemun-Gu, Seoul, 03722, South Korea
| | - Yu-Ri Kim
- Department of Advanced General Dentistry College of Dentistry, Yonsei University, 50 Yonseiro, Seodaemun-Gu, Seoul, 03722, South Korea
| | - Sol-Ah Jeong
- Department of Advanced General Dentistry College of Dentistry, Yonsei University, 50 Yonseiro, Seodaemun-Gu, Seoul, 03722, South Korea
| | - Bock-Young Jung
- Department of Advanced General Dentistry College of Dentistry, Yonsei University, 50 Yonseiro, Seodaemun-Gu, Seoul, 03722, South Korea.
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Yin Y, Zhao Y, Fei Y, Liu Y, Ji Y, Shan E, Niu S, Xing Y, Ding J, Li X. Epidemiology and risk factors of oral frailty among older people: an observational study from China. BMC Oral Health 2024; 24:368. [PMID: 38515048 PMCID: PMC10958975 DOI: 10.1186/s12903-024-04149-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/15/2024] [Indexed: 03/23/2024] Open
Abstract
OBJECTIVES This study aimed to compare the prevalence of oral frailty among community-dwelling older people in Nanjing, China with the usage of different measurements, and to investigate the potential risk factors of oral frailty. DESIGN Cross-sectional study. SETTING AND PARTICIPANTS A total of 338 community-dwelling older people in Nanjing, China were recruited. METHODS Oral frailty was measured based on the Oral Frailty Index-8 (OFI-8) scale and other measurement methods including the number of natural teeth (TN), repetitive saliva-swallowing test (RSST), and oral diadochokinesis (ODK). The chi-square test and the binary logistic regression analysis were performed to identify potential risk factors for oral frailty. RESULTS There were 310 participants included in the analysis. Prevalence of oral frailty by using the OFI-8, OFI-8 + TN, OFI-8 + ODK, OFI-8 + TN + ODK and RSST measurement methods were 69.0%, 27.4%, 51.9%, 21.0% and 2.9%, respectively. Passive smoking (OR = 2.04; 95%CI 1.03-4.03), being widowed/unmarried (OR1 = 2.53; 95%CI 1.25-5.10; OR2 = 2.94; 95%CI 1.12-7.77), pre-frailty (OR = 1.76; 95%CI 1.03-3.01), frailty (OR = 3.01; 95%CI 1.39-6.54), and aged 80 years and above (OR = 3.99; 95%CI 1.35-11.81) were found to be risk factors of oral frailty by the usage of the four kinds of measurement methods. CONCLUSIONS AND IMPLICATIONS The definition and diagnostic criteria of oral frailty are strongly needed to be unified in future research. Only subjective assessment is not enough for assessing oral frailty. Among objective indicators, RSST is not suitable as a screening method for oral frailty. In addition, objective indicators including TN and ODK should be valued for early screening and preventive interventions. The risk factors of oral frailty include physical frailty, passive smoking, and being widowed.
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Affiliation(s)
- Yueheng Yin
- School of Nursing, Nanjing Medical University, No.101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Yue Zhao
- School of Nursing, Nanjing Medical University, No.101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Yang Fei
- School of Nursing, Nanjing Medical University, No.101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Ying Liu
- School of Nursing, Nanjing Medical University, No.101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Yun Ji
- Chunhua Community Health Service Centre, Nanjing, 211166, Jiangsu, China
| | - Enfang Shan
- School of Nursing, Nanjing Medical University, No.101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Shuzhen Niu
- School of Nursing, Nanjing Medical University, No.101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Ying Xing
- School of Nursing, Nanjing Medical University, No.101 Longmian Avenue, Nanjing, 211166, Jiangsu, China
| | - Jingjing Ding
- Sir Run Run Hospital of Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - XianWen Li
- School of Nursing, Nanjing Medical University, No.101 Longmian Avenue, Nanjing, 211166, Jiangsu, China.
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Seto E, Kosaka T, Hatta K, Mameno T, Mihara Y, Fushida S, Murotani Y, Maeda E, Akema S, Takahashi T, Wada M, Gondo Y, Masui Y, Ishizaki T, Kamide K, Kabayama M, Ikebe K. Factors related to subjective evaluation of difficulty in chewing among community-dwelling older adults. Geriatr Gerontol Int 2024; 24 Suppl 1:327-333. [PMID: 38114072 DOI: 10.1111/ggi.14783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/21/2023]
Abstract
AIM Awareness of difficulty chewing may limit the diversity of food intake in older adults. However, few studies have clarified which factors are related to subjective difficulty in chewing. The aim was to identify factors related to subjective difficulty in chewing in 70- and 80-year-old Japanese older adults. METHODS A total of 1680 participants (792 men, 888 women) were surveyed. Difficulty in chewing was assessed with questionnaires regarding food intake, such as rice, apples, beef, and hard rice crackers. The participants were classified into two groups, the "with difficulty" group (participants who answered "cannot eat," "can eat with difficulty," and "can eat if small") and the "without difficulty" group (participants who answered "can eat without problems"), according to their answers to questionnaires for each food. A logistic regression analysis with subjective difficulty in chewing as the dependent variable was performed for each food. RESULTS Subjective difficulty in chewing was associated with age, occlusal force, and depression for rice; age, number of remaining teeth, occlusal force, and depression for apples; number of remaining teeth, occlusal force, and depression for beef; and number of remaining teeth and occlusal force for hard rice crackers. CONCLUSIONS Age, number of remaining teeth, and occlusal force, as well as depression, might be related to subjective evaluation of difficulty chewing in community-dwelling Japanese older adults. Geriatr Gerontol Int 2024; 24: 327-333.
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Affiliation(s)
- Eri Seto
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Takayuki Kosaka
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Kodai Hatta
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Tomoaki Mameno
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Yusuke Mihara
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Shuri Fushida
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Yuki Murotani
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Erisa Maeda
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Suzuna Akema
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Toshihito Takahashi
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Masahiro Wada
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Yasuyuki Gondo
- Department of Clinical Thanatology and Geriatric Behavioral Science, Osaka University Graduate School of Human Sciences, Osaka, Japan
| | - Yukie Masui
- Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Tatsuro Ishizaki
- Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Kei Kamide
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Mai Kabayama
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kazunori Ikebe
- Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
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Parisius KGH, Verhoeff MC, Lobbezoo F, Avivi-Arber L, Duyck J, Hirano H, Iijima K, Janssens B, Kossioni A, Lin CS, McKenna G, Müller F, Schimmel M, Visser A, Watanabe Y, Gobbens RJJ. Towards an operational definition of oral frailty: A e-Delphi study. Arch Gerontol Geriatr 2024; 117:105181. [PMID: 37713933 DOI: 10.1016/j.archger.2023.105181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/17/2023]
Abstract
OBJECTIVES Building upon our recently developed conceptual definition of oral frailty (the age-related functional decline of orofacial structures), this e-Delphi study aims to develop an operational definition of oral frailty by identifying its components. METHODS We used a modified e-Delphi study to reach a consensus among international experts on the components of oral frailty. Twelve out of fifteen invited experts in the field of gerodontology participated. Experts responded to three rounds of an online 5-point scale questionnaire of components to be included or excluded from the operational definition of oral frailty. After each round, scores and rationales were shared with all experts, after which they could revise their position. A consensus was reached when at least 70% of the experts agreed on whether or not a component should be included in the operational definition of oral frailty. RESULTS The experts achieved a high level of agreement (80 - 100%) on including eight components of oral frailty and excluding nineteen. The operational definition of oral frailty should include the following components: 1) difficulty eating hard or tough foods, 2) inability to chew all types of foods, 3) decreased ability to swallow solid foods, 4) decreased ability to swallow liquids, 5) overall poor swallowing function, 6) impaired tongue movement, 7) speech or phonatory disorders, and 8) hyposalivation or xerostomia. CONCLUSION This e-Delphi study provided eight components that make up the operational definition of oral frailty. These components are the foundation for the next stage, which involves developing an oral frailty assessment tool.
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Affiliation(s)
- Karl G H Parisius
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, ACTA, University of Amsterdam, The Netherlands; Faculty of Health, Sports and Social Work, Inholland University of Applied Sciences, The Netherlands.
| | - Merel C Verhoeff
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, ACTA, University of Amsterdam, The Netherlands
| | - Frank Lobbezoo
- Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, ACTA, University of Amsterdam, The Netherlands
| | | | - Joke Duyck
- Department of Oral Health Sciences, KU Leuven, Belgium
| | - Hirohiko Hirano
- Tokyo Metropolitan Institute for Geriatrics and Gerontology, Japan
| | - Katsuya Iijima
- Institute for Future Initiatives, Institute of Gerontology, The University of Tokyo, Japan
| | - Barbara Janssens
- Department of Oral Health Sciences, Gerodontology, ELOHA (Equal Lifelong Oral Health for All) research group, Ghent University, Belgium
| | - Anastassia Kossioni
- Division of Gerodontology, Department of Prosthodontics, Dental School, National and Kapodistrian University of Athens, Greece
| | - Chia-Shu Lin
- Department of Dentistry, National Yang Ming Chiao Tung University, Taiwan
| | - Gerald McKenna
- Centre for Public Health, Queen's University Belfast, Northern Ireland United Kingdom
| | - Frauke Müller
- Division of Gerodontology and Removable Prosthdontics, University Clinics of Dental Medicine, University of Geneva, Switzerland
| | - Martin Schimmel
- Division of Gerodontology and Removable Prosthdontics, University Clinics of Dental Medicine, University of Geneva, Switzerland; Department of Reconstructive Dentistry and Gerodontology, school of Dental Medicine, University of Bern, Switzerland
| | - Anita Visser
- Department of Gerodontology, Center for Dentistry and Oral Hygiene, University of Groningen, The Netherlands; University Medical Center Groningen, The Netherlands; Department for Gerodontology, College of Dental Sciences, Radboud University Nijmegen Medical Centre, The Netherlands
| | - Yutaka Watanabe
- Gerodontology, Department of Oral Health Science, Faculty of Dental Medicine, Hokkaido University, Hokkaido, Japan
| | - Robbert J J Gobbens
- Faculty of Health, Sports and Social Work, Inholland University of Applied Sciences, The Netherlands; Zonnehuisgroep Amstelland, The Netherlands; Department Family Medicine and Population Health, Faculty of Medicine and Health Sciences, University of Antwerp, Belgium; Department of Tranzo Academic Centre for Transformation in Care and Welfare, Faculty of Behavioural and Social Sciences, Tilburg University, The Netherlands
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Takeuchi N, Sawada N, Ekuni D, Morita M. Association between oral condition and subjective psychological well-being among older adults attending a university hospital dental clinic: A cross-sectional study. PLoS One 2023; 18:e0295078. [PMID: 38015962 PMCID: PMC10684071 DOI: 10.1371/journal.pone.0295078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/14/2023] [Indexed: 11/30/2023] Open
Abstract
Positive psychological well-being has a favorable impact on survival rates in both healthy and unhealthy populations. Oral health is also associated with psychological well-being, is multidimensional in nature, and includes physical, psychological, emotional, and social domains that are integral to overall health and well-being. This study aimed to identify the associations between individual and environmental characteristics, oral condition and nutritional status in relation to subjective well-being among older adults using the Wilson and Cleary conceptual model. The participants were older adults (age ≥ 60 years) attending a university hospital. Subjective well-being was assessed using the World Health Organization-5 Well-Being Index, oral condition was assessed based on the number of bacteria in the tongue coating, oral wettability, tongue pressure, occlusal force, oral diadochokinesis, and masticatory ability, and subjective swallowing function was assessed using the Eating Assessment Tool, number of remaining teeth, and number of functional teeth. In addition, factors related to well-being, including social networks, life-space mobility, nutritional status, smoking history, drinking history, and medical history were assessed. In the analysis, structural equation modeling was used to investigate the association between oral condition and subjective well-being. Confirmatory factor analysis revealed oral condition as a latent variable, including tongue pressure, oral diadochokinesis /pa/, /ta/, /ka/, occlusal force, masticatory ability, subjective swallowing function, and number of functional teeth. Structural Equation Modeling revealed that oral condition was positively correlated with nutritional status, and nutritional status was positively correlated with the World Health Organization-5 Well-Being Index. These findings suggest that oral condition may influence subjective well-being via nutritional status or social environmental factors.
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Affiliation(s)
- Noriko Takeuchi
- Department of Preventive Dentistry, Okayama University Hospital, Okayama, Okayama, Japan
| | - Nanami Sawada
- Department of Preventive Dentistry, Okayama University Hospital, Okayama, Okayama, Japan
| | - Daisuke Ekuni
- Department of Preventive Dentistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Okayama, Japan
| | - Manabu Morita
- Department of Oral Health, Takarazuka University of Medical and Health Care, Takarazuka, Hyogo, Japan
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