PT - JOURNAL ARTICLE AU - Ken Fitch AU - Sandra Anderson TI - Intense exercise and airway hyper-responsiveness/asthma—importance of environmental factors AID - 10.1136/bjsports-2012-090948 DP - 2012 May 01 TA - British Journal of Sports Medicine PG - 379--380 VI - 46 IP - 6 4099 - http://bjsm.bmj.com/content/46/6/379.short 4100 - http://bjsm.bmj.com/content/46/6/379.full SO - Br J Sports Med2012 May 01; 46