title: The unknown case:  part 1.
authors.affiliation: Department of Neurological Surgery, University of California Davis Health System, Sacramento, CA 95816, USA. kee.kim@ucdmc.ucdavis.edu
authors.forename: Kee D
authors.initials: KD
authors.lastname: Kim
authors.forename: Eric S
authors.initials: ES
authors.lastname: Kim
mesh_terms: D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D017116:Low Back Pain / Q000150:complications*; D008159:Lumbar Vertebrae / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D013130:Spinal Stenosis / Q000150:complications / Q000175:diagnosis* / Q000601:surgery