RT Journal Article SR Electronic T1 Physical activity and the triggering of myocardial infarction: the case for regular exercise. JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 323 OP 325 DO 10.1136/hrt.75.4.323 VO 75 IS 4 A1 G. H. Tofler A1 M. A. Mittleman A1 J. E. Muller YR 1996 UL http://heart.bmj.com/content/75/4/323.abstract AB