Abstract

Johnny Huard, PhD; Yong Li, PhD, MD; Growth and Development Laboratory, Children's Hospital of Pittsburgh, 4151 Rangos Research Center, 3705 Fifth Avenue, Pittsburgh, PA 15213. E-mail address for J. Huard: [email protected] Freddie H. Fu, MD; Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Liliane S. Kaufmann Building, 3471 Fifth Avenue, Suite 1010, Pittsburgh, PA 15213