Cross-Sectional Study of Chronic Obstructive Pulmonary Disease Prevalence Among Smokers, Ex-Smokers, and Never-Smokers in Almaty, Kazakhstan: Study Protocol

por Sharman, Almaz, Zhussupov, Baurzhan, Sharman, Dana, Stambekova, Assel, Yeraliyev, Sattar
Publicado 2017