title: Protruded intervertebral cervical disk: incidence and affected cervical level in Rochester, Minnesota, 1950 through 1974.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002574:Cervical Vertebrae; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D008910:Minnesota