@article{Önal2021_490606,
author={Ayşe Emel Önal and Selvi Nur Pacci and Seher Palanbek Yavaş and ÇIGDEM ÇAGLAYAN},
title={Effect of Particulate Matter and Nitrogen Dioxide Levels on Chronic Bronchitis Incidence and Mortality in Marmara Region: Retrospective Cohort Study},
year={2021},
journal={Türkiye Klinikleri Tıp Bilimleri Dergisi},
issn={1300-0292},
volume={41},
number={3},
url={http://search/yayin/detay/490606}
}