RT Journal Article SR Electronic T1 Bilateral origin of a split left anterior descending coronary artery combined with atypical branching of the left circumflex coronary artery JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 70 OP 70 DO 10.1136/heart.88.1.70 VO 88 IS 1 A1 Schanzenbächer, P A1 Strotmann, J YR 2002 UL http://heart.bmj.com/content/88/1/70.abstract AB