Ключевые слова: background, blue, cardiac, cardiology, care, clinic, clinical, closeup, concept, counter, device, display, doctor, electronic, electronics, equipment, health, healthy, heart, heartbeat, hospital, illness, instrument, level, machine, measure, measurement, medical, medicine, modern, monitor, monitoring, object, oximeter, oxygen, patient, pulse, pulse oximeter, rate, saturation, scientific, sensor, signs, smart, stethoscope, technology, tool, treatment, vital, white,