1. Preventing maternal deaths;Royston,1989
2. Population pressure and the medical profession;Sadik;Trop Geogr Med,1988
3. Essential obstetric functions at first referral level,1986
4. Maternal health care in the southwestern highlands of Tanzania;van Roosmalen,1988
5. Childbearing, health and social priorities: a survey of 22,774 consecutive hospital births in Zaria, northern Nigeria;Harrison;Br J Obstet Gynaecol,1985