RT Journal Article SR Electronic T1 Double orifice mitral valve associated with non-compaction of left ventricle JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 504 OP 504 DO 10.1136/hrt.85.5.504 VO 85 IS 5 A1 JUNKO KAMEI A1 MASAMI NISHINO A1 SHIRO HOSHIDA YR 2001 UL http://heart.bmj.com/content/85/5/504.abstract AB