Abdalla, Isam, 		Ahmed, Sayed, 		Elhassan, Elhassan, 		Mirghani, Omer, AND 		Adam, Ishag.
" Instrumental (operative) vaginal deliveries: Vacuum extraction compared with forceps delivery at Wad Medani Teaching Hospital, Sudan" <em>Gezira Journal of Health Sciences</em> [Online], Volume 1 Number 1 (1 January 2003)