[1] Univ Bisha, Coll Med, Dept Pediat, Bisha, Saudi Arabia
[2] Univ Bisha, Coll Med, Dept Med Educ, Bisha, Saudi Arabia
[3] Univ Bisha, Coll Med, Dept Obstet & Gynecol, Bisha, Saudi Arabia
[4] Omdurman Islamic Univ, Coll Med, Dept Obstet & Gynecol, Khartoum, Sudan
[5] Univ Bisha, Coll Med, Dept Basic Med Sci, Bisha, Saudi Arabia
[6] Univ Gezira, Fac Med, Dept Physiol, Wad Madani, Sudan
[7] Univ Bisha, Coll Med, Bisha, Saudi Arabia
[8] Univ Bisha, Coll Med, Dept Community Med, Bisha, Saudi Arabia
[9] Shendi Univ, Coll Med, Shendi, River Nile Stat, Sudan
[10] Univ Bisha, Coll Med, Dept Basic Med Sci, Microbiol Unit, POB 731, Bisha 67614, Saudi Arabia