Tuberkuloz ve toraks, cilt.66, sa.4, ss.317-324, 2018 (Scopus)
Introduction: Smoking is the leading cause of chronic obstructive pulmonary disease (COPD) and cotinine is reliable marker of tobacco exposure. We aimed to investigate the relationship between pulmonary function tests (FVC%, FEV1 , FEV1/FVC and FEF25-75%), smoking history and blood cotinine levels in healthy volunteers as a control and patients who have COPD in our study.