Ключевые слова: aid, analysis, background, beat, blood, body, cardiac, cardio, cardiology, cardiovascular, care, checking, concept, control, device, diagnostic, digital, doctor, equipment, examination, health, heart, hr, hypertension, hypotension, illness, light, measurement, measuring, medical, medicine, modern, monitor, monitoring, object, pressure, pulsation, pulse, rate, red, rhythm, sick, small, sphygmomanometer, test, top, treatment, view, white,