Ключевые слова: adult, aid, analysis, arm, background, biology, blood, blue, care, charity, clinic, closeup, cutout, disease, doctor, donate, donation, donor, exam, female, give, glove, hand, health, healthy, help, holding, hospital, injection, laboratory, medical, medicine, needle, object, patient, png, procedure, professional, red, research, science, syringe, test, transfusion, transparent, treatment, tube, vein, volunteer,