Ключевые слова: adult, biology, busy, caucasian, chemical, chemist, chemistry, cure, doctor, education, equipment, experiment, expertise, glasses, group, health, healthcare, hospital, job, lab, laboratory, male, man, medical, medicine, microbiology, microscope, model, occupation, people, physician, portrait, professional, property, research, results, science, scientific, serious, smiling, study, team, technology, test, tubes, university, white, women, work, young,