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Rasheed AZ, Metersky ML, Ghazal F. Mechanisms and management of cough in interstitial lung disease. Expert Rev Respir Med 2023; 17:1177-1190. [PMID: 38159067 DOI: 10.1080/17476348.2023.2299751] [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: 09/26/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
INTRODUCTION Many patients with interstitial lung diseases (ILDs), especially fibrotic ILDs, experience chronic cough. It negatively impacts both physical and psychological well-being. Effective treatment options are limited. AREAS COVERED The pathophysiology of chronic cough in IPF is complex and involves multiple mechanisms, including mechanical distortion of airways, parenchyma, and nerve fibers. The pathophysiology of cough in other fibrosing ILDs is poorly understood and involves various pathways. The purpose of this review is to highlight mechanisms of chronic cough and to present therapeutic evidence for its management in the most commonly occurring diffuse fibrosing lung diseases including idiopathic pulmonary fibrosis (IPF), connective tissue disease-related interstitial lung disease (CTD-ILD), sarcoidosis-related ILD (Sc-ILD), chronic hypersensitivity pneumonitis-related ILD (CHP-ILD), and post-COVID-19-related interstitial lung disease (PC-ILD). EXPERT OPINION This review guides the management of chronic cough in fibrosing ILDs. In this era of precision medicine, chronic cough management should be individualized in each interstitial lung disease.
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Affiliation(s)
- Ameer Z Rasheed
- Division of Pulmonary, Critical Care and Sleep Medicine, UConn Health, Farmington, CT, USA
| | - Mark L Metersky
- Division of Pulmonary, Critical Care and Sleep Medicine, UConn Health, Farmington, CT, USA
| | - Fatima Ghazal
- Department of Internal Medicine, UConn Health, Farmington, CT, USA
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2
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Yates DH. Physiology and Biomarkers for Surveillance of Occupational Lung Disease. Semin Respir Crit Care Med 2023; 44:349-361. [PMID: 37072024 DOI: 10.1055/s-0043-1766119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
Respiratory surveillance is the process whereby a group of exposed workers are regularly tested (or screened) for those lung diseases which occur as a result of a specific work exposure. Surveillance is performed by assessing various measures of biological or pathological processes (or biomarkers) for change over time. These traditionally include questionnaires, lung physiological assessments (especially spirometry), and imaging. Early detection of pathological processes or disease can enable removal of a worker from a potentially harmful exposure at an early stage. In this article, we summarize the physiological biomarkers currently used for respiratory surveillance, while commenting on differences in interpretative strategies between different professional groups. We also briefly review the many new techniques which are currently being assessed for respiratory surveillance in prospective research studies and which are likely to significantly broaden and enhance this field in the near future.
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Affiliation(s)
- Deborah H Yates
- Department of Thoracic Medicine, St. Vincent's Hospital, Darlinghurst, NSW, Australia
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Oțelea MR, Fell AKM, Handra CM, Holm M, Filon FL, Mijakovski D, Minov J, Mutu A, Stephanou E, Stokholm ZA, Stoleski S, Schlünssen V. The value of fractional exhaled nitric oxide in occupational diseases - a systematic review. J Occup Med Toxicol 2022; 17:14. [PMID: 35879723 PMCID: PMC9317127 DOI: 10.1186/s12995-022-00355-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 07/04/2022] [Indexed: 12/04/2022] Open
Abstract
Fractional exhaled nitric oxide (FeNO) is a non-invasive biomarker of respiratory tract inflammation, originally designated to identify eosinophilic airway inflammation and to predict steroid response. The main field of application of this biomarker is asthma, but FeNO has also been used for other allergic and non-allergic pulmonary disorders such as chronic obstructive pulmonary disease, hypersensitivity pneumonitis and interstitial lung disease. A substantial part of respiratory diseases are related to work, and FeNO, a safe and easy measure to conduct, is a potential valid examination in an occupational setting. This systematic review assesses the value of measuring FeNO related to three types of airborne exposures: allergens, irritants, and respiratory particles inhaled during occupational activities. The review covers results from longitudinal and observational clinical studies, and highlights the added value of this biomarker in monitoring effects of exposure and in the diagnostic criteria of occupational diseases. This review also covers the possible significance of FeNO as an indicator of the efficacy of interventions to prevent work-related respiratory diseases. Initially, 246 articles were identified in PUBMED and SCOPUS. Duplicates and articles which covered results from the general population, symptoms (not disease) related to work, non-occupational diseases, and case reports were excluded. Finally, 39 articles contributed to this review, which led to the following conclusions: a) For occupational asthma there is no consensus on the significant value of FeNO for diagnosis, or on the magnitude of change needed after specific inhalation test or occupational exposure at the workplace. There is some consensus for the optimal time to measure FeNO after exposure, mainly after 24 h, and FeNO proved to be more sensitive than spirometry in measuring the result of an intervention. b) For other occupational obstructive respiratory diseases, current data suggests performing the measurement after the work shift. c) For interstitial lung disease, the evaluation of the alveolar component of NO is probably the most suitable.
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Affiliation(s)
| | - Anne Kristin M Fell
- Occupational and Environmental Medicine, Telemark Hospital, Skien, Norway.,Department of Global Health and Community Medicine, Institute of Health and Community, University of Oslo, Oslo, Norway
| | - Claudia Mariana Handra
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,Colentina Clinical Hospital, Clinic for Occupational Medicine, Bucharest, Romania
| | - Mathias Holm
- Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Francesca Larese Filon
- Unit of Occupational Medicine, Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Dragan Mijakovski
- Institute of Occupational Health of RN Macedonia, Skopje, North Macedonia.,Faculty of Medicine, Ss. Cyril and Methodius, University in Skopje, Skopje, North Macedonia
| | - Jordan Minov
- Institute of Occupational Health of RN Macedonia, Skopje, North Macedonia.,Faculty of Medicine, Ss. Cyril and Methodius, University in Skopje, Skopje, North Macedonia
| | - Andreea Mutu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,Central Military University Emergency Hospital "Carol Davila", Bucharest, Romania
| | | | - Zara Ann Stokholm
- Department of Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark
| | - Sasho Stoleski
- Institute of Occupational Health of RN Macedonia, Skopje, North Macedonia.,Faculty of Medicine, Ss. Cyril and Methodius, University in Skopje, Skopje, North Macedonia
| | - Vivi Schlünssen
- Department of Public Health, Environment, Occupation and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
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Zheng Y, Lou Y, Zhu F, Wang X, Wu W, Wu X. Utility of fractional exhaled nitric oxide in interstitial lung disease. J Breath Res 2021; 15. [PMID: 34128832 DOI: 10.1088/1752-7163/ac01c1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 05/14/2021] [Indexed: 11/11/2022]
Abstract
The majority of interstitial lung diseases (ILDs) develop rapidly and are associated with a poor prognosis. Therefore, new noninvasive markers are needed to guide the classification and prognostication of ILD. We enrolled 95 patients with ILD, including dermatomyositis-associated ILD (n =69), Sjögren's syndrome-associated ILD (n= 7), mixed connective tissue disease-associated ILD (n= 9), idiopathic pulmonary fibrosis (n= 5) and hypersensitivity pneumonitis (n= 5), 82 patients with connective tissue disease but without ILD as well as 24 healthy controls, then evaluated fractional exhaled nitric oxide (FeNO50; 50 ml s-1) (Bisenkovet al2006Vestn. Khir. Im. I. I. Grek.1659-14), pulmonary function and high-resolution computed tomography (HRCT) scores. Blood samples were analyzed and bronchoalveolar lavage fluid parameters were measured. There was no significant difference in FeNO50 values between different subgroups of ILD patients or between different subgroups of ILD patients and healthy controls. However, we found that FeNO50 was negatively correlated with the HRCT score and positively correlated with forced vital capacity. FeNO50 values did not play a clinical role in the diagnosis, differential diagnosis or prognostication of ILD.
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Affiliation(s)
- Yu Zheng
- Department of Pulmonology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Yueyan Lou
- Department of Pulmonology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Feng Zhu
- Department of Pulmonology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Xiaodong Wang
- Department of Rheumatology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Wanlong Wu
- Department of Rheumatology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Xueling Wu
- Department of Pulmonology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
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Barnes H, Olin AC, Torén K, McSharry C, Donnelly I, Lärstad M, Iribarren C, Quinlan P, Blanc PD. Occupation versus environmental factors in hypersensitivity pneumonitis: population attributable fraction. ERJ Open Res 2020; 6:00374-2020. [PMID: 33043057 PMCID: PMC7533383 DOI: 10.1183/23120541.00374-2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 07/01/2020] [Indexed: 12/28/2022] Open
Abstract
Background Despite well-documented case series of hypersensitivity pneumonitis (HP), epidemiological data delineating relative contributions of risk factors are sparse. To address this, we estimated HP risk in a case-referent study of occupational and nonoccupational exposures. Methods We recruited cases of HP by ICD-9 codes from an integrated healthcare delivery system (IHCDS) and a tertiary medical care centre. We drew referents, matched for age and sex, from the IHCDS. Participants underwent comprehensive, structured telephone interviews eliciting details of occupational and home environmental exposures. We employed a hierarchical analytic approach for data reduction based on the false discovery rate method within clusters of exposures. We measured lung function and selected biomarkers in a subset of participants. We used multivariate logistic regression to estimate exposure-associated odds ratios (ORs) and population attributable fractions (PAFs) for HP. Results We analysed data for 192 HP cases (148 IHCDS; 44 tertiary care) and 229 referents. Occupational exposures combined more than doubled the odds of developing HP (OR 2.67; 95% CI 1.73–4.14) with a PAF of 34% (95% CI 21–46%); nonoccupational bird exposure also doubled the HP odds (OR 2.02; 95% CI 1.13–3.60), with a PAF of 12% (3–21%). Lung function and selected biomarkers did not substantively modify the risk estimates on the basis of questionnaire data alone. Discussion In a case-referent approach evaluating HP risk, identifiable exposures accounted, on an epidemiological basis, for approximately two in three cases of disease; conversely, for one in three, the risk factors for disease remained elusive. Occupational and environmental factors account for two in three cases of HP. The contributions of risk factors vary markedly depending on case referral source. This could affect clinical ascertainment of cause and the implementation of preventative actions.https://bit.ly/3feAa6P
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Affiliation(s)
- Hayley Barnes
- Division of Pulmonary and Critical Care, Dept of Medicine, University of California, San Francisco, CA, USA.,Central Clinical School, Monash University, Melbourne, Australia
| | - Anna-Carin Olin
- Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.,Dept of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kjell Torén
- Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.,Dept of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | | | - Iona Donnelly
- Dept of Immunology, University of Glasgow, Glasgow, UK
| | - Mona Lärstad
- Dept of Internal Medicine/Respiratory Medicine and Allergology, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | | | - Patricia Quinlan
- Division of Occupational and Environmental Medicine, Dept of Medicine, University of California, San Francisco, CA, USA
| | - Paul D Blanc
- Division of Pulmonary and Critical Care, Dept of Medicine, University of California, San Francisco, CA, USA.,Division of Occupational and Environmental Medicine, Dept of Medicine, University of California, San Francisco, CA, USA
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Cameli P, Bargagli E, Bergantini L, d’Alessandro M, Pieroni M, Fontana GA, Sestini P, Refini RM. Extended Exhaled Nitric Oxide Analysis in Interstitial Lung Diseases: A Systematic Review. Int J Mol Sci 2020; 21:E6187. [PMID: 32867116 PMCID: PMC7503828 DOI: 10.3390/ijms21176187] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/20/2020] [Accepted: 08/24/2020] [Indexed: 12/20/2022] Open
Abstract
Fractional exhaled nitric oxide (FeNO) is a well-known and widely accepted biomarker of airways inflammation that can be useful in the therapeutic management, and adherence to inhalation therapy control, in asthmatic patients. However, the multiple-flows assessment of FeNO can provide a reliable measurement of bronchial and alveolar production of NO, supporting its potential value as biomarker also in peripheral lung diseases, such as interstitial lung diseases (ILD). In this review, we first discuss the role of NO in the pathobiology of lung fibrosis and the technique currently approved for the measurement of maximum bronchial flux of NO (J'awNO) and alveolar concentration of NO (CaNO). We systematically report the published evidence regarding extended FeNO analysis in the management of patients with different ILDs, focusing on its potential role in differential diagnosis, prognostic evaluation and severity assessment of disease. The few available data concerning extended FeNO analysis, and the most common comorbidities of ILD, are explored too. In conclusion, multiple-flows FeNO analysis, and CaNO in particular, appears to be a promising tool to be implemented in the diagnostic and prognostic pathways of patients affected with ILDs.
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Affiliation(s)
- Paolo Cameli
- Respiratory Diseases Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (E.B.); (L.B.); (M.d.); (M.P.); (P.S.); (R.M.R.)
| | - Elena Bargagli
- Respiratory Diseases Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (E.B.); (L.B.); (M.d.); (M.P.); (P.S.); (R.M.R.)
| | - Laura Bergantini
- Respiratory Diseases Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (E.B.); (L.B.); (M.d.); (M.P.); (P.S.); (R.M.R.)
| | - Miriana d’Alessandro
- Respiratory Diseases Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (E.B.); (L.B.); (M.d.); (M.P.); (P.S.); (R.M.R.)
| | - Maria Pieroni
- Respiratory Diseases Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (E.B.); (L.B.); (M.d.); (M.P.); (P.S.); (R.M.R.)
| | - Giovanni A. Fontana
- Department of Experimental and Clinical Medicine, University of Florence, 50121 Florence, Italy;
| | - Piersante Sestini
- Respiratory Diseases Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (E.B.); (L.B.); (M.d.); (M.P.); (P.S.); (R.M.R.)
| | - Rosa Metella Refini
- Respiratory Diseases Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, 53100 Siena, Italy; (E.B.); (L.B.); (M.d.); (M.P.); (P.S.); (R.M.R.)
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7
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Soumagne T, Dalphin JC. Current and emerging techniques for the diagnosis of hypersensitivity pneumonitis. Expert Rev Respir Med 2018; 12:493-507. [PMID: 29727203 DOI: 10.1080/17476348.2018.1473036] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
INTRODUCTION Hypersensitivity pneumonitis (HP) is the result of an immunologically induced inflammation of the lung parenchyma in response to inhalation exposure to a large variety of antigens in genetically susceptible individuals. HP shares clinical and radiological features with other acute and chronic interstitial lung diseases and is sometimes difficult to diagnose if exposure to an antigenic agent is not detected. Several classifications and diagnostic criteria have been proposed but are not currently recommended by guidelines from any scientific society. However, advances have been made over the past ten years in improving the diagnosis of HP. Areas covered: This article will provide a summary of the different classification and diagnostic criteria proposed in acute and chronic forms of HP. In addition, we review current diagnostic procedures including antigen detection, high resolution computed tomography, histopathology and provide an overview of emerging techniques. Expert commentary: Important changes are occurring in the field of HP and knowledge of the disease will likely progress enormously in the coming 5 to 10 years as many techniques continue to be developed, including genomic signature and diagnostic biomarkers.
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Affiliation(s)
- Thibaud Soumagne
- a Service de Pneumologie , CHU de Besançon , Besançon , France.,b UMR 6249 Chrono-environnement , Université de Franche-Comté , Besançon , France
| | - Jean Charles Dalphin
- a Service de Pneumologie , CHU de Besançon , Besançon , France.,b UMR 6249 Chrono-environnement , Université de Franche-Comté , Besançon , France
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8
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Torre-Bouscoulet L, Muñoz-Montaño WR, Martínez-Briseño D, Lozano-Ruiz FJ, Fernández-Plata R, Beck-Magaña JA, García-Sancho C, Guzmán-Barragán A, Vergara E, Blake-Cerda M, Gochicoa-Rangel L, Maldonado F, Arroyo-Hernández M, Arrieta O. Abnormal pulmonary function tests predict the development of radiation-induced pneumonitis in advanced non-small cell lung Cancer. Respir Res 2018; 19:72. [PMID: 29690880 PMCID: PMC5937833 DOI: 10.1186/s12931-018-0775-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 04/10/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Radiation pneumonitis (RP) is a frequent complication of concurrent chemoradiotherapy (CCRT) and is associated with severe symptoms that decrease quality of life and might result in pulmonary fibrosis or death. The aim of this study is to identify whether pulmonary function test (PFT) abnormalities may predict RP in non-small cell lung cancer (NSCLC) patients. METHODS A prospective multi-institutional study was conducted with locally advanced and oligometastatic NSCLC patients. All participants were evaluated at baseline, end of CCRT, week 6, 12, 24, and 48 post-CCRT. They completed forced spirometry with a bronchodilator, body plethysmography, impulse oscillometry, carbon monoxide diffusing capacity (DLCO), molar mass of CO2, six-minute walk test and exhaled fraction of nitric oxide (FeNO). Radiation pneumonitis was assessed with RTOG and CTCAE. The protocol was registered in www.clinicaltrials.gov (NCT01580579), registered April 19, 2012. RESULTS Fifty-two patients were enrolled; 37 completed one-year follow-up. RP ≥ Grade 2 was present in 11/37 (29%) for RTOG and 15/37 (40%) for CTCAE. Factors associated with RP were age over 60 years and hypofractionated dose. PFT abnormalities at baseline that correlated with the development of RP included lower forced expiratory volume in one second after bronchodilator (p = 0.02), DLCO (p = 0.02) and FeNO (p = 0.04). All PFT results decreased after CCRT and did not return to basal values at follow-up. CONCLUSIONS FEV1, DLCO and FeNO prior to CCRT predict the development of RP in NSCLC. This study suggests that all patients under CCRT should be assessed by PFT to identify high-risk patients for close follow-up and early treatment.
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Affiliation(s)
- L Torre-Bouscoulet
- Subdirección de Investigación Clínica, INER, Calz. de Tlalpan 4502, Tlalpan, Sección XVI, C.P. 14080, Ciudad de México, México
- Departamento de Fisiología Respiratoria INER, México city, México
| | - W R Muñoz-Montaño
- Unidad Funcional de Oncología Torácica, Instituto Nacional de Cancerología (INCAN), Av. San Fernando No. 22, Col. Sección XVI, Tlalpan, 14080, Ciudad de México, CP, Mexico
| | - D Martínez-Briseño
- Departamento de Investigación en Epidemiología y Ciencias Sociales en Salud, Instituto Nacional de Enfermedades Respiratorias (INER), México city, Mexico
| | | | - R Fernández-Plata
- Departamento de Investigación en Epidemiología y Ciencias Sociales en Salud, Instituto Nacional de Enfermedades Respiratorias (INER), México city, Mexico
| | - J A Beck-Magaña
- Unidad Funcional de Oncología Torácica, Instituto Nacional de Cancerología (INCAN), Av. San Fernando No. 22, Col. Sección XVI, Tlalpan, 14080, Ciudad de México, CP, Mexico
| | - C García-Sancho
- Departamento de Investigación en Epidemiología y Ciencias Sociales en Salud, Instituto Nacional de Enfermedades Respiratorias (INER), México city, Mexico
| | - A Guzmán-Barragán
- Departamento de Investigación en Epidemiología y Ciencias Sociales en Salud, Instituto Nacional de Enfermedades Respiratorias (INER), México city, Mexico
| | - E Vergara
- Unidad Funcional de Oncología Torácica, Instituto Nacional de Cancerología (INCAN), Av. San Fernando No. 22, Col. Sección XVI, Tlalpan, 14080, Ciudad de México, CP, Mexico
| | - M Blake-Cerda
- Departamento de Radio-Oncología, INCAN, México city, Mexico
| | - L Gochicoa-Rangel
- Subdirección de Investigación Clínica, INER, Calz. de Tlalpan 4502, Tlalpan, Sección XVI, C.P. 14080, Ciudad de México, México
- Departamento de Fisiología Respiratoria INER, México city, México
| | - F Maldonado
- Departamento de Radio-Oncología, INCAN, México city, Mexico
| | - M Arroyo-Hernández
- Unidad Funcional de Oncología Torácica, Instituto Nacional de Cancerología (INCAN), Av. San Fernando No. 22, Col. Sección XVI, Tlalpan, 14080, Ciudad de México, CP, Mexico
| | - O Arrieta
- Unidad Funcional de Oncología Torácica, Instituto Nacional de Cancerología (INCAN), Av. San Fernando No. 22, Col. Sección XVI, Tlalpan, 14080, Ciudad de México, CP, Mexico.
- Thoracic Oncology Unit, Instituto Nacional de Cancerología, Ciudad de México, México.
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