Cross-Sectional Study of Chronic Obstructive Pulmonary Disease Prevalence Among Smokers, Ex-Smokers, and Never-Smokers in Almaty, Kazakhstan: Study Protocol
Cross-Sectional Study of Chronic Obstructive Pulmonary Disease Prevalence Among Smokers, Ex-Smokers, and Never-Smokers in Almaty, Kazakhstan: Study Protocol
Almaz Sharman
1
, MD, PhD ;
Baurzhan Zhussupov
1
, MSc Epi ;
Dana Sharman
1
, MPH, MD ;
Assel Stambekova
1
, MD ;
Sattar Yeraliyev
1
, MD
1
Kazakhstan Academy оf Preventive Medicine, Almaty, Kazakhstan