N. Gumeniuk , B. “Preoperative Correction of Anemia of Chronic Diseases and Application of Bloodless Technology in Mitral and Aortic Valve Replacement”. Ukrainian Journal of Cardiovascular Surgery, no. 1 (42),  , pp. 47-52, doi:10.30702/ujcvs/21.4203/g018047-052/155.16.