Anderson D Greg, Patel Amar, Maltenfort Mitchell, Vaccaro Alexander R, Ratliff John, Hilibrand Alan, Harrop James S, Sharan Ashwini D, Ponnappan Ravi K, Rihn Jeffrey, Albert Todd J
Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA, USA.
Spine (Phila Pa 1976). 2011 Mar 1;36(5):E320-5. doi: 10.1097/BRS.0b013e3181db1dfb.