Ключевые слова: analysis, analyzing, arm, bag, blood, care, clinic, doctor, donate, donating, donation, donor, expertise, hand, healing, health, healthcare, hospital, indoors, injecting, injection, laboratory, male, man, medical, medicine, needle, nurse, patient, person, receiving, sample, science, sterile, syringe, test, transfused, transfusion, vein, volunteer, young,