Ключевые слова: attack, awareness, background, blood, blue, cardiac, cardiologist, cardiology, care, charity, check, closeup, color, concept, copy, day, diagnose, diagnosis, disease, doctor, donor, equipment, examination, health, healthy, heart, heartbeat, help, hospital, instrument, listen, medical, medicine, nurse, object, pain, patient, pressure, pulse, space, stethoscope, symptoms, text, therapy, tool, treatment, world,