PT - JOURNAL ARTICLE AU - Tom Marshall TI - Physical activity and atrial fibrillation AID - 10.1136/heartjnl-2013-304541 DP - 2013 Dec 01 TA - Heart PG - 1713--1713 VI - 99 IP - 23 4099 - http://heart.bmj.com/content/99/23/1713.short 4100 - http://heart.bmj.com/content/99/23/1713.full SO - Heart2013 Dec 01; 99