Ключевые слова: blood, cardiology, care, clinic, clinical, closeup, coronavirus, covid19, device, digital, display, doctor, ekg, emergency, exam, examining, finger, hand, health, healthcare, heart, heartbeat, hospital, instrument, level, machine, measure, measurement, medical, medicine, meter, modern, monitor, monitoring, oximeter, oxygen, patient, pocket, portable, pressure, pulse, pulse oximeter, rate, saturation, sensor, smart, technology, using, vital,