Ezike, O. V., Betrand, O. N., Azubuike, O. N. J., Zebulon, O. and Richard, E. (2017) “Derivation of new clinical formulae and tricolor predicting chart for estimating birth weight at term”, International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 4(4), pp. 1048–1052. doi: 10.18203/2320-1770.ijrcog20150424.