Authors: Kevin M Guskiewicz; Michael McCrea; Stephen W Marshall; Robert C Cantu; Christopher Randolph; William Barr; James A Onate; James P Kelly Journal: JAMA Date: 2003-11-19 Impact factor: 56.272
Authors: Derk A Van Kampen; Mark R Lovell; Jamie E Pardini; Michael W Collins; Freddie H Fu Journal: Am J Sports Med Date: 2006-06-30 Impact factor: 6.202