CHARACTERISTICS OF ENDEMIC RISK FACTORS OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE IN THE KOMI REPUBLIC
Učënye zapiski Sankt-Peterburgskogo gosudarstvennogo medicinskogo universiteta im. Akad. I.P. Pavlova/Učënye zapiski Sankt-Peterburgskogo gosudarstvennogo medicinskogo universiteta imeni akademika I. P. Pavlova