Marhatta, N., and I. Kaul. “Validity of Clinical and Sonographic Diagnosis of IUGR: A Comparative Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 6, no. 6, May 2017, pp. 2407-12, doi:10.18203/2320-1770.ijrcog20172321.