title: Chemical intervention.
mesh_terms: D000700:Analgesics / Q000627:therapeutic use; D000777:Anesthetics; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D003140:Communicable Disease Control; D004358:Drug Therapy; D006728:Hormones / Q000502:physiology / Q000627:therapeutic use; D006801:Humans; D009751:Nutritional Requirements; D014612:Vaccines; D014815:Vitamins
chemical_list: D000700:Analgesics; D000777:Anesthetics; D000900:Anti-Bacterial Agents; D006728:Hormones; D014612:Vaccines; D014815:Vitamins