RT Journal Article SR Electronic T1 PARAVERTEBRAL BLOCK AND THE ELECTROCARDIOGRAM IN ANGINA PECTORIS JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 47 OP 52 DO 10.1136/hrt.8.1.47 VO 8 IS 1 A1 K. Braun YR 1946 UL http://heart.bmj.com/content/8/1/47.abstract AB