Ключевые слова: cardiac, cardiology, care, clinic, clinical, closeup, concept, device, diagnostic, digital, display, document, electronic, emergency, epidemic, equipment, exam, hand, health, hospital, infection, instrument, level, machine, measure, measurement, medical, medicine, meter, modern, monitor, monitoring, oximeter, oxygen, oxymeter, patient, portable, pulse, saturation, sensor, table, technology, test, tool, urgency, virus,