Ключевые слова: background, blood, blue, cardiac, cardiology, caucasian, check, clinic, closeup, consultation, device, diagnosis, disease, display, equipment, fever, finger, hand, health, healthcare, heartbeat, home, hospital, isolated, level, light, lung, measure, measurement, measuring, medical, medicine, monitor, oximeter, oxygen, person, portable, pulse, rate, saturation, sensor, sick, skin, technology, test, tool, treatment, virus,