Ключевые слова: 4, ab, aid, analysis, bar, care, cell, considers, doctor, donate, donation, examination, fourth, glass, gloves blood, group, grouping, hand, hands, health, holds, hospital, human, label, laboratory, laboratory assistant, liquid, looks, male, man, many, mark, medic, medical, medicine, negative, plasma, positive, red, sample, sampling, science, sticker, test, transfusion, tray, tube, type, typing, vial,