Ключевые слова: 20s, 40s, beaker, black, caucasian, checking, chemical, chemicals, chemist, chemistry, clinical, colorful, drug, examining, female, glasses, hispanic, indoors, lab, lab coat, laboratory, liquids, looking down, male, man, mature adult, microscope, mingling, mixing, office, petri dish, pharmaceuticals, pharmacy, pipette, placing, protection, protective suits, putting, research, safety glasses, science, scientific, scientist, test tubes, testing, white background, woman, young adult,