A case against "sleepers".
D002140:California; D005260:Female; D006765:Hospitals, Convalescent; D006801:Humans; D006993:Hypnotics and Sedatives / Q000008:administration & dosage*; D008019:Life Style; D008875:Middle Aged; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy
D006993:Hypnotics and Sedatives