Arshad, Rabia, et al. “EFFECTS OF METFORMIN AND INSULIN ON MORPHOLOGY, STEREOLOGY AND MEAN MORPHOMETRIC DIFFUSION CAPACITY IN DIABETIC PLACENTA”. Pakistan Journal of Physiology, vol. 18, no. 2, June 2022, pp. 22-27, https://pjp.pps.org.pk/index.php/PJP/article/view/1420.