control, hospital, illness, technology, equipment, arm, artery, blood, clinic, degree, diabetes, diagnostic, display, doctor, electricity, examining, females, health care, heartbeat, heat, horizontal, ill, indoors, infection, instrument, lifestyles, mask, measure, measurement, measuring, medical, medicine, model, number, one person, patient, protect, protection, safe, scale, showing, sickness, surgery, surveillance, test, tool, virus, detection, device, flu