title: [I. I. Grekov and heart surgery].
mesh_terms: D006348:Cardiac Surgical Procedures / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: I. I. Grekov i khirurgiia serdtsa.