Ключевые слова: attack, awareness, background, blood, cardiologist, cardiology, care, check, clinic, concept, day, diagnose, disease, doctor, equipment, examination, failure, flat, health, healthy, heart, heartbeat, help, hospital, lay, letters, light, medicine, murmur, object, pain, palpitations, patient, pressure, pulse, red, safety, sick, stethoscope, support, symptoms, text, tool, top, treatment, view, white, wooden, world,