Ключевые слова: background, beat, blood, cardiac, cardiology, care, clinic, display, ecg, ekg, electrocardiogram, electronics, emergency, equipment, frequency, health, healthcare, healthy, heart, heartbeat, hospital, instrument, life, machine, measurement, medical, medicine, modern, monitor, monitoring, oximeter, oxygen, patient, physical, pressure, pulse, rate, rhythm, saturation, screen, sensor, show, sign, signs, surveillance, taking, technology, trace, urgency, vital,