[1] Thomas Jefferson Univ, Div Musculoskeletal Imaging & Intervent, Thomas Jefferson Univ Hosp, Sidney Kimmel Med Coll,Dept Radiol, 132 South 10th St, Philadelphia, PA 19107 USA
[2] Thomas Jefferson Univ, Sidney Kimmel Med Coll, Thomas Jefferson Univ Hosp, Rothman Inst,Dept Orthoped Surg, 925 Chestnut St, Philadelphia, PA 19107 USA