RT Journal Article SR Electronic T1 Rheumatic valvular heart surgery and Maze III procedure JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1522 OP 1523 VO 25 IS 10 A1 Abbas Afrasiabi A1 Naser Safaii YR 2004 UL http://smj.org.sa/content/25/10/1522.abstract AB