For citations:

Efros L.A., Lukin O.P., Samorodskaya I.V., Semenov V.Yu., Sumin A.N., Ivanov S.V., Evseeva M.V., Barbarash O.L. COMORBIDITIES IN PATIENTS WITH CORONARY ARTERY DISEASE ADMITTED TO CARDIAC SURGERY CENTERS IN CHELYABINSK AND KEMEROVO. Complex Issues of Cardiovascular Diseases. 2017;6(4):71-79. (In Russ.) https://doi.org/10.17802/2306-1278-2017-6-4-71-79