RT Journal Article SR Electronic T1 ORAL TREATMENT OF A-V BLOCK AND OTHER BRADYCARDIAS WITH SUSTAINED ACTION ISOPRENALINE JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 926 OP 931 DO 10.1136/hrt.27.6.926 VO 27 IS 6 A1 Nis I. Nissen A1 Åge Chr. Thomsen YR 1965 UL http://heart.bmj.com/content/27/6/926.abstract AB