Ключевые слова: attack, background, beat, cardiac, cardio, cardiologist, cardiology, care, clinic, concept, diagnosis, disease, doctor, ecg, family, female, hand, health, healthcare, heart, heartbeat, help, holding, hospital, human, humanity, illness, life, man, medic, medical, medicine, patient, people, person, physician, professional, pulse, red, showing, sign, specialist, stethoscope, support, surgery, transplantation, white, woman, young,