RT Journal Article SR Electronic T1 Pattern of congenital heart disease in Southern Yemeni children referred for echocardiography JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 214 OP 214 VO 31 IS 2 A1 Al-Mendalawi, Mahmood D. YR 2010 UL http://smj.org.sa/content/31/2/214.abstract AB