Severe insomnia in psychiatric inpatients.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000437:Alcoholism; D003863:Depression; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011618:Psychotic Disorders / Q000150:complications*; D007319:Sleep Initiation and Maintenance Disorders / Q000150:complications*; D019966:Substance-Related Disorders