Mador, E. S., S. D. Pam, I. C. Pam, J. T. Mutihir, G. I. Adoga, and J. O. Ogunranti. “Symphysio-Fundal Height Nomogram In Ultrasound Dated Pregnancies”. Asian Journal of Medical Sciences, vol. 1, no. 2, Jan. 2011, pp. 64-67, doi:10.3126/ajms.v1i2.3138.