RT Journal Article SR Electronic T1 Myocardial perfusion in humans: what can we measure? JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 307 OP 314 DO 10.1136/hrt.70.4.307 VO 70 IS 4 A1 Ludman, P F A1 Poole-Wilson, P A YR 1993 UL http://heart.bmj.com/content/70/4/307.abstract AB