Letter: Oral lorazepam.
D000284:Administration, Oral; D001570:Benzodiazepinones / Q000008:administration & dosage*; D002722:Chlorobenzenes / Q000008:administration & dosage; D004724:Endoscopy; D006801:Humans; D011292:Premedication; D012890:Sleep / Q000187:drug effects*; D014149:Tranquilizing Agents / Q000008:administration & dosage*
D001570:Benzodiazepinones; D002722:Chlorobenzenes; D014149:Tranquilizing Agents