Hospital LOS still declining, but huge variations exist across diagnoses.
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006761:Hospitals; D006801:Humans; D038801:International Classification of Diseases; D007902:Length of Stay / Q000639:trends*; D008297:Male; D008875:Middle Aged; D014481:United States