Ключевые слова: adult, african ethnicity, businessman, candid, care, casual clothing, caucasian ethnicity, coworker, dentist, discussion, doctor, equipment, expertise, females, group of people, healthcare and medicine, hospital, indoors, lifestyles, looking, looking at camera, males, mature adult, medical occupation, medicine, men, mid adult, mid adult men, mid adult women, multiethnic group, occupation, office, patient, professional occupation, protective mask, real people, selective focus, sitting, smiling, surgeon, surgery, surgical mask, talking, teamwork, women, working, workwear, young adult, young women,