1. Campbell S, Warsof SL, Little D, et al (1985) Routine ultrasound screening for the prediction of gestational age. Obstet Gynecol 65: 613–620.
2. Eden RD, Gergely RZ, Schifrin BS, et al (1982) Comparison of antepartum testing schemes for the management of the postdate pregnancy. Am J Obstet Gynecol 144: 683–692.
3. Richardson DK, Schwartz JS, Weisebaum PJ, et al (1985) Diagnostic tests in obstetrics: a method for improved evaluation. Am J Obstet Gynecol 152: 613–618.
4. Fischer RL, Kuhlman KA, Depp R, et al (1991) Doppler evaluation of umbilical and uterine arcuate arteries in the postdate pregnancy. Obstet Gynecol 78: 363–368.
5. Fischer RL, McDonnell M, Bianculli KW, et al (1993) Amniotic fluid volume estimation in the postdate pregnancy: a comparison of techniques. Obstet Gynecol 81: 698–704; 82: 635–636.