Bernstein Joseph, Kenniston Julia A, Nydick Jason A, Zgonis Miltiadis H, Beredjiklian Pedro K
Department of Orthopaedic Surgery, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.
J Bone Joint Surg Am. 2010 Feb;92(2):508-11. doi: 10.2106/JBJS.I.00530.