For citations:
Barbarash N.L., Semjonov V.Yu., Samorodskaya I.V., Evseeva М.V., Rozhkov N.A., Sumin A.N., Barbarash L.S. COMORBIDITY IN CORONARY HEART DISEASE PATIENTS UNDERGOING BYPASS GRAFTING: AN EXPERIENCE OF TWO SURGERY CENTERS. Russian Journal of Cardiology. 2017;(3):6-13. (In Russ.) https://doi.org/10.15829/1560-4071-2017-3-6-13