RT Journal Article SR Electronic T1 Permanent neurological deficits complicating sinoatrial block. JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 503 OP 506 DO 10.1136/hrt.35.5.503 VO 35 IS 5 A1 H H Samarasinghe A1 N Senanyake YR 1973 UL http://heart.bmj.com/content/35/5/503.abstract AB