RT Journal Article SR Electronic T1 STRESS ECHOCARDIOGRAPHY JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 31 OP 32 DO 10.1136/hrt.71.4_Suppl.31 VO 71 IS 4 Suppl A1 Petros Nihoyannopoulos YR 1994 UL http://heart.bmj.com/content/71/4_Suppl/31.abstract AB