RT Journal Article SR Electronic T1 Football and altitude: a FIFA vision 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 i1 OP i1 DO 10.1136/bjsports-2013-093006 VO 47 IS Suppl 1 A1 Michel D'Hooghe YR 2013 UL http://bjsm.bmj.com/content/47/Suppl_1/i1.abstract AB