RT Journal Article SR Electronic T1 Occlusion of congenital ventricular septal defects by the buttoned device. "Buttoned device" Clinical Trials International Register. JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 276 OP 279 DO 10.1136/hrt.77.3.276 VO 77 IS 3 A1 E. B. Sideris A1 K. P. Walsh A1 J. L. Haddad A1 C. R. Chen A1 S. G. Ren A1 H. Kulkarni YR 1997 UL http://heart.bmj.com/content/77/3/276.abstract AB Markup server — Error Error There was a problem handling your request. Please try again in a few minutes, or contact us if you continue to experience this problem.