Zonal responsiveness of the human intervertebral disc to bone morphogenetic protein-2.
Kim H, Lee JU, Moon SH, Kim HC, Kwon UH, Seol NH, Kim HJ, Park JO, Chun HJ, Kwon IK, Lee HM.
Spine (Phila Pa 1976). 2009 Aug 1;34(17):1834-8. doi: 10.1097/BRS.0b013e3181ae18ba.
PMID:19644335
Extent of nucleus pulposus migration in the annulus of porcine intervertebral discs exposed to cyclic flexion only versus cyclic flexion and extension.