Ключевые слова: analysis, biochemistry, biology, biomedical, biotechnology, blood, blood donation, care, cell, check, chemistry, clinical, close up, cure, diagnosis, doctor, donate blood, examining, glass tube, gloves, hand, health, health examination, healthcare, holding, hospital, lab, laboratory, liquid, medical, plasma, reaching forward, red, red liquid, research, researcher, sample, science, scientist, searching found, specimen, test, test tube, testing, tool, tube, virus, water, worker,