Ключевые слова: abstract, activity, background, building, business, cardiogram, cardiology, care, clinic, computer, concept, corridor, death, display, doctor, doppler, echo, echocardiogram, emergency, equipment, er, floor, health, healthcare, heart, heartbeat, hospital, icu, man, medical, medicine, monitor, nurse, nursing, occupation, patient, people, person, personnel, professional, pulse, rate, room, staff, surgery, technical, technology, ultrasound, wall, ward, work, worker,