title: Demographic characteristics of persons with acute herniated lumbar intervertebral disc.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D003237:Connecticut; D004522:Educational Status; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000453:epidemiology*; D008159:Lumbar Vertebrae; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000503:physiopathology; D044469:Racial Groups; D012585:Sciatica / Q000209:etiology; D012737:Sex Factors; D012923:Social Class; D014505:Urban Population