title: Controlled comparison of estazolam and nitrazepam as hypnotics on the preoperative night sleep.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001007:Anxiety / Q000517:prevention & control; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D006993:Hypnotics and Sedatives / Q000494:pharmacology* / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009567:Nitrazepam / Q000494:pharmacology* / Q000627:therapeutic use; D011300:Preoperative Care; D012890:Sleep / Q000187:drug effects*
chemical_list: D006993:Hypnotics and Sedatives; D009567:Nitrazepam