Ключевые слова: asian, background, blood, button, cardiology, care, clinic, clinical, closeup, control, corona, counter, covid19, device, digital, disease, display, electronics, equipment, finger, hand, health, heart, heartbeat, hospital, instrument, isolated, level, machine, measure, measurement, medical, medicine, meter, modern, monitor, monitoring, oximeter, oxygen, patient, person, portable, pressure, pulse, rate, scientific, sensor, technology, tool, virus,