Clinical trials and tribulations.
D000368:Aged; D002986:Clinical Trials as Topic; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D006993:Hypnotics and Sedatives / Q000627:therapeutic use; D008297:Male; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy
D006993:Hypnotics and Sedatives