Ключевые слова: 20s, 70s, biology, caucasian, class, college, doctor, education, elderly, expertise, female, healthcare, healthcare and medicine, hospital, hygiene, indoors, intern, lab, laboratory, learn, learning, light, looking at camera, male, man, mask, medical, medical research, medical student, medicine, mixedrace, operating, operating theater, operation, performance, portrait, science, scrubs, senior, sterile, student, surgeon, surgery, surgical cap, team, together, uniform, university, woman, young adult,