RT Journal Article SR Electronic T1 THE EFFECTS OF ADRENERGIC-BLOCKING AGENTS ON THE PULMONARY CIRCULATION IN MAN JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 442 OP 448 DO 10.1136/hrt.18.4.442 VO 18 IS 4 A1 J. Mackinnon A1 C. F. H. Vickers A1 E. G. Wade YR 1956 UL http://heart.bmj.com/content/18/4/442.abstract AB