Ключевые слова: analysis, background, biochemistry, biology, blood, caucasian appearance, cell, clinic, cure, disease, doctor, equipment, experiment, finger, fluid, glove, hand, handling, holding, hospital, lab, laboratory, liquid, measure, medical, medicine, microbiology, one person, pharmacy, phial, plasma, processing, red, research, researcher, sample, science, scientific, shallow depth of field, sterile, substance, technology, test, test tube, therapeutic, tube, virus, woman, worker,