Pooja Garg, Dhiraj Saxena, and Kalpana Mangal. “Maternal Hypothyroidism and Its Effect on Placenta and Newborn: A Morphometric and Histopathological Study”. International Journal of Health and Clinical Research, vol. 4, no. 13, July 2021, pp. 130-4, https://ijhcr.com/index.php/ijhcr/article/view/2088.