Koga Hideyuki, Bahr Roald, Myklebust Grethe, Engebretsen Lars, Grund Thomas, Krosshaug Tron
Oslo Sports Trauma Research Center, Norwegian School of Sport Sciences, Oslo, Norway.
Clin J Sport Med. 2011 May;21(3):271-4. doi: 10.1097/JSM.0b013e31821899ec.