Ключевые слова: adults, analyzing, backgrounds, beaker, biology, blue, business, chemist, chemistry, closeup, coat, color, contemporary, discovery, doctor, exam, experiment, expertise, female, hand, health, healthcare, hospital, human, image, indoors, industry, lab, laboratory, lifestyles, male, medical, medicine, men, nurse, occupation, people, person, professional, research, science, scientific, scientist, technician, technology, test, white, women, working, xray,