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Ames CP, Smith JS, Preul MC, Crawford NR, Kim GE, Nottmeier E, Chamberlain R, Speiser B, Sonntag VK, Dickman CA.Ames CP, et al. Among authors: smith js.Spine (Phila Pa 1976). 2005 Dec 1;30(23):2585-92. doi: 10.1097/01.brs.0000188294.01845.20.Spine (Phila Pa 1976). 2005.PMID: 16319743