Ishrat, S., M. Rahman, M. Rahman, M. Hussain, and S. Jahan. “Leptin Concentrations in Maternal and Umbilical Cord Blood in Relation to Maternal Weight, Birth Weight and Weight of the Placenta”. Bangladesh Journal of Obstetrics &Amp; Gynaecology, vol. 23, no. 1, Aug. 2009, pp. 3-7, doi:10.3329/bjog.v23i1.3049.