TY - JOUR T1 - Views from the past JF - British Heart Journal JO - Heart SP - 307 LP - 307 DO - 10.1136/hrt.63.5.307 VL - 63 IS - 5 AU - Dennis M Krikler Y1 - 1990/05/01 UR - http://heart.bmj.com/content/63/5/307.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -