Ключевые слова: attack, background, blood, cardiac, cardiogram, cardiology, care, clinic, doctor, ecg, electronics, emergency, equipment, exam, finger, hand, health, healthcare, heart, heartbeat, help, hospital, instrument, level, life, machine, measure, measurement, medical, medicine, modern, monitor, monitoring, oximeter, oximetry, oxygen, oxymeter, oxymetry, patient, pulse, rate, resuscitation, saturation, scientific, sensor, signs, sole, surgery, technology, tool,