TY - JOUR AU - Ekstrand, J; Hagglund, M; Walden, M TI - Epidemiology of muscle injuries in professional football (soccer) JO - Am J Sports Med VL - 39 PY - 2011 DO - 10.1177/0363546510395879 L3 - PubMed-ID: 21335353 SP - 1226 EP - 1232 ER -