Ключевые слова: assistance, authority, beijing, blood, clinic, concentration, cooperation, coworker, disease, doctor, emergency, expertise, glove, health, health care, horizontal, hospital, human, hygiene, illuminated, indoors, injury, machine, mask, medicine, mid adult, nurse, occupation, operating, operating room, pain, patient, person, preparation, professional, protection, rescue, room, safety, skill, sterile, surgeon, surgery, surgical, teamwork, theatre, treatment, working, xray,