Yi Paul H, Cross Michael B, Della Valle Craig J
Department of Orthopaedic Surgery, University of California, San Francisco, 2550 23rd Street, Building 9, 2nd Floor, San Francisco, CA, 94110, USA,
Clin Orthop Relat Res. 2015 Jun;473(6):2152-3. doi: 10.1007/s11999-015-4257-2. Epub 2015 Mar 20.