RT Journal Article SR Electronic T1 COMBINED PERCUTANEOUS RETROGRADE AORTIC AND TRANSSEPTAL LEFT HEART CATHETERIZATION JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 460 OP 468 DO 10.1136/hrt.26.4.460 VO 26 IS 4 A1 G. B. Peckham A1 A. Chrysohou A1 H. E. Aldridge A1 E. D. Wigle YR 1964 UL http://heart.bmj.com/content/26/4/460.abstract AB