Ключевые слова: background, biology, book, care, chemistry, clinic, closeup, concept, cure, disease, doctor, dose, drug, equipment, euthanasia, experiment, flu, hand, health, healthcare, holding, hospital, idea, illness, influenza, injecting, injection, insulin, isolated, laboratory, liquid, man, medical, medication, medicine, narcotic, needle, patient, people, pharmaceutical, plastic, professional, research, science, sterile, surgery, syringe, treatment, writing,