RT Journal Article SR Electronic T1 Saudi Medical Journal The New Century JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 2 OP 2 VO 22 IS 1 A1 Basim A. Yaqub A1 Saleh M. Al-Deeb YR 2001 UL http://smj.org.sa/content/22/1/2.abstract AB