RT Journal Article SR Electronic T1 The pyramid of sports medicine and child health 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 4 OP 7 DO 10.1136/bjsm.2009.069195 VO 44 IS 1 A1 Steven D Stovitz YR 2010 UL http://bjsm.bmj.com/content/44/1/4.abstract AB