Ключевые слова: aid, arm, assist, assistance, background, blood, blue, cardiologist, care, caucasian, cheerful, concept, doctor, emotional, exam, female, finger, hand, health, healthy, heart, heartbeat, help, hold, hospital, human, idea, lifestyle, light, measurement, measuring, medical, medicine, nurse, nursing, patient, people, person, pressure, pulsating, pulse, sign, sport, stress, take, touching, white, wrist,