title: Coccydynia and lumbar disk disease--historical correlations and clinical cautions.
authors.affiliation: Thomas Jefferson Medical College, Philadelphia, Pennsylvania 19107.
authors.forename: D A
authors.initials: DA
authors.lastname: Nelson
mesh_terms: D001416:Back Pain / Q000266:history; D002908:Chronic Disease; D003050:Coccyx; D049671:History, 18th Century; D049673:History, 20th Century; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000266:history*; D008159:Lumbar Vertebrae; D014481:United States