title: Letter: Are there safer hypnotics than barbiturates?
mesh_terms: D001463:Barbiturates / Q000009:adverse effects* / Q000627:therapeutic use / Q000633:toxicity; D001570:Benzodiazepinones / Q000627:therapeutic use / Q000633:toxicity; D006801:Humans; D009567:Nitrazepam / Q000627:therapeutic use* / Q000633:toxicity
chemical_list: D001463:Barbiturates; D001570:Benzodiazepinones; D009567:Nitrazepam