Ключевые слова: analysis, background, biochemistry, biology, blood, care, chemistry, clinic, closeup, clot, collection, colorful, container, empty, equipment, green, health, healthy, hematology, hospital, isolated, lab, laboratory, liquid, macro, medical, medication, medicine, needle, patient, pharmacy, plasma, purple, red, sample, science, syringe, test, transparent, treatment, tube, tubes, vacutainer, vacuum, virus, white, white background,