Ключевые слова: adult, background, breathing problem, cardiologist, care, check, checkup, clinic, coat, covid19, diagnosis, disease, doctor, elderly, examination, examining, finger, general practitioner, health, health care, healthcare, heart, heartbeat, hearts, hospital, illness, instruments, man, measure, medical, medicine, monitor, occupation, oximeter, oxygen, oxygen tube, patient, physician, professional, pulse, saturation, senior, sick therapy, sitting, specialist, stethoscope, tool, uniform, white, woman,