Ключевые слова: adult, analyzing, arm, bag, ball, blood, body, bouncy, care, clinic, dna, donate, donation, donor, expertise, give, hand, hands, healing, health, healthcare, holding, hospital, indoors, injecting, injection, laboratory, male, man, medical, medicine, men, needle, patient, receiving, rubber, sample, science, serum, squeeze, sterile, syringe, test, transfused, transfusion, vial, volunteer,