RT Journal Article SR Electronic T1 Hepatitis B viral infection in South west Saudi Arabia JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 390 OP 390 VO 25 IS 3 A1 Arya, Subhash C. A1 Agarwal, Nirmala A1 Ayoola, Ayobanji E. YR 2004 UL http://smj.org.sa/content/25/3/390.abstract AB