Ключевые слова: background, blood, cardiac, cardiogram, cardiology, care, clinic, computer, device, digital, display, doctor, ecg, ekg, electronic, emergency, equipment, health, healthcare, heart, heartbeat, hospital, human, icu, instrument, intensive, life, machine, measurement, medical, medicine, modern, monitor, monitoring, patient, pulse, room, screen, sign, surgery, surveillance, technology, test, tool, treatment, urgency, vital, wave,