RT Journal Article SR Electronic T1 Quadriceps assessment in professional soccer players JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 182 OP 182 DO 10.1136/bjsm.2004.015933 VO 39 IS 3 A1 S J Bennet A1 P B O’Donohoe A1 D Young A1 G C Bennet YR 2005 UL http://bjsm.bmj.com/content/39/3/182.1.abstract AB