Ключевые слова: adult, background, beat, blood, cardio, cardiologist, cardiology, care, check, clinic, closeup, color, concept, consultation, device, diagnosis, disease, doctor, examination, female, gadget, hand, health, heart, heartbeat, holding, hospital, illness, internet, laptop, medical, medicine, modern, online, patient, people, person, pressure, prevention, pulse, red, rhythm, service, sickness, table, technology, treatment, woman, working,