TY - RPRT TI - Centrode patterns and segmental instability in degenerative disc disease. AU - S D Gertzbein AU - J Seligman AU - R Holtby AU - K H Chan AU - A Kapasouri AU - M Tile AU - B Cruickshank PY - 1985 DO - 10.1097/00007632-198504000-00014 UR - https://pubmed.ncbi.nlm.nih.gov/3992346/ ID - 3992346 ER -