Comment on

• Quantification of cavitation and gapping of lumbar zygapophyseal joints during spinal manipulative therapy.

  Cramer GD, Ross K, Raju PK, Cambron J, Cantu JA, Bora P, Dexheimer JM, McKinnis R, Habeck AR, Selby S, Pocius JD, Gregerson D. Cramer GD, et al. J Manipulative Physiol Ther. 2012 Oct;35(8):614-21. doi: 10.1016/j.jmpt.2012.06.007. Epub 2012 Aug 14. J Manipulative Physiol Ther. 2012. PMID: 22902194 Free PMC article. Clinical Trial.
• Quantification of cavitation and gapping of lumbar zygapophyseal joints during spinal manipulative therapy.

  Perle SM. Perle SM. J Manipulative Physiol Ther. 2013 May;36(4):259. doi: 10.1016/j.jmpt.2013.05.003. J Manipulative Physiol Ther. 2013. PMID: 23816258 No abstract available.