DiFiori John P, Benjamin Holly J, Brenner Joel S, Gregory Andrew, Jayanthi Neeru, Landry Greg L, Luke Anthony
Division of Sports Medicine and Non-Operative Orthopaedics, Departments of Family Medicine and Orthopaedics, University of California, , Los Angeles, California, USA.
Br J Sports Med. 2014 Feb;48(4):287-8. doi: 10.1136/bjsports-2013-093299.