References
- Thomson A M, Billewicz W Z, Hytten F E. The assessment of fetal growth. J Obstet Gynaecol Br Cwlth 1968; 75: 903–16
- Wilcox M A, Johnson I R, Maynard P V, Smith S J, Chilvers C E D. The individualised birthweight ratio: a more logical outcome measure of pregnancy than birthweight alone. Br J Obstet Gynaecol 1993; 100: 342–7
- Seidman D S, Ever-Hadani P, Stevenson D K, Slater P E, Harlap S, Gale R. Birth order and birthweight reexamined. Obstet Gynecol 1988; 72: 158–62
- Wilcox M, Gardosi J, Mongelli M, Ray C, Johnson I. Birth weight from pregnancies dated by ultrasonography in a multicultural British population. Br Med J 1993; 307: 588–91