Ключевые слова: adult, analysis, analyzing, arm, assistant, attention, chemical, chemistry, clinic, closeup, concentration, desk, discover, doctor, document, equipment, examine, experiment, experimentation, expertise, female, hand, health, hospital, lab, laboratory, lady, medical, medicine, microbiology, paper, pharmacy, practitioner, professional, research, researcher, sample, science, scientific, scientist, sitting, study, technician, technologist, test, tube, woman, working, writing, young,