Ключевые слова: american, attack, awareness, background, blood, cancer, cardiac, cardio, cardiology, cardiovascular, care, check, clinic, closeup, concept, day, diagnose, disease, doctor, donation, emergency, equipment, exam, failure, flag, health, healthy, heart, hospital, illness, infarct, medical, medicine, nobody, object, patient, prevention, protection, rehabilitation, science, states, stethoscope, stroke, surgery, symptom, treatment, united, usa, view, world,