title: Opisthotonos and benzodiazepine withdrawal in the elderly.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D009567:Nitrazepam / Q000009:adverse effects*; D013035:Spasm / Q000139:chemically induced*; D013375:Substance Withdrawal Syndrome
chemical_list: D009567:Nitrazepam