Ключевые слова: background, black, blood, cardiologist, care, check, control, device, diagnose, diagnostic, disease, equipment, examination, gauge, health, heart, heartbeat, high, hypertension, hypotension, illness, isolated, low, measure, medicine, meter, monitoring, object, patient, pressure, pulse, rhythm, sick, sphygmomanometer, symptom, test, tonometer, white,