title: Current status and prospects of cardiovascular surgery in the U.S.S.R.
mesh_terms: D001243:Assisted Circulation; D002318:Cardiovascular Diseases / Q000601:surgery*; D005112:Extracorporeal Circulation; D006330:Heart Defects, Congenital / Q000601:surgery; D006350:Heart Valve Prosthesis; D006801:Humans; D014586:USSR