Local anesthesia of the head and neck.
D000772:Anesthesia, Local; D000779:Anesthetics, Local / Q000009:adverse effects; D004342:Drug Hypersensitivity / Q000209:etiology; D006257:Head / Q000601:surgery*; D006801:Humans; D009333:Neck / Q000601:surgery*; D009407:Nerve Block
D000779:Anesthetics, Local