HallMHChngPMacGillivrayI.Is routine antenatal care worth while?Lancet1980;ii:78–80.
2.
ChngPKHallMHMacGillivrayI.An audit of antenatal care: The value of the first antenatal visit. Br Med J1980;281:1184–6.
3.
BaggerPVEriksenPSSecherNJThistedJWestergaardL.The precision and accuracy of symphysis-fundus distance measurements during pregnancy. Acta Obstet Gynaec Scand1985;64:371–4.
4.
BairdD.Combined textbook of obstetrics and gynaecology. Edinburgh: Livingstone, 1962.
5.
EverettVJ.The relationship between maternal height and cephalopelvic disproportion in Dar es Salaam. East Afr Med J1975;52:251–6.