title: Management of chronic sleep disorders in the elderly.
mesh_terms: D000368:Aged; D002908:Chronic Disease; D006801:Humans; D006993:Hypnotics and Sedatives / Q000627:therapeutic use; D012890:Sleep / Q000502:physiology; D012891:Sleep Apnea Syndromes / Q000628:therapy; D007319:Sleep Initiation and Maintenance Disorders / Q000188:drug therapy / Q000209:etiology; D012894:Sleep Stages; D012893:Sleep Wake Disorders / Q000628:therapy*
chemical_list: D006993:Hypnotics and Sedatives