@article{50d555f80cfe4d08ba5b139db7cbe952,
title = "Consistency and reliability of smoking-related variables: longitudinal study design in asthma and COPD",
keywords = "Asthma, COPD, smoking, self-reported smoking, longitudinal study, test-retest reliability, SELF-REPORTED SMOKING, CARBON-MONOXIDE, VALIDITY, TOBACCO, VALIDATION, CESSATION, COTININE, HISTORY, SERUM, AGE, 3121 General medicine, internal medicine and other clinical medicine",
author = "Eveliina Hirvonen and Mikhael Stepanov and Maritta Kilpel{\"a}inen and Ari Lindqvist and Tarja Laitinen",
year = "2019",
month = jan,
day = "1",
doi = "10.1080/20018525.2019.1591842",
language = "English",
volume = "6",
journal = "European Clinical Respiratory Journal ",
issn = "2001-8525",
publisher = "Co-Action Publishing",
number = "1",
}