Ключевые слова: anatomy, aorta, blood, bodies, body, cardiac, cardiology, care, change, chronic, circulation bloodstream, defect, disease, doctor, donation, donor, donorship, endocarditis, exam, examination, fever, graft, grafting, health, healthy, heart, heartbeat, hospital, human, infective, medical, medicine, myocarditis, operation, organ, pericarditis, professional, rheumatic, rheumatism, science, service, surgeon, surgery, surgical, transplant, transplantation,