Ключевые слова: adult, analysis, analyzing, background, biotechnology, clinic, clinical, concept, diagnosis, doctor, engineering, experiment, expertise, genetic, gray hair, health, healthcare, hospital, illness, industry, lab, lab coat, laboratory, man, mask, mature, mature adult, medical, medical occupation, medical service, medicine, microbiology, molecules, person, pharmacy, portrait, profession, professional, research, researchers, science, scientific, scientists, screen, senior, structure, technician, technology, test, uniform,