Verma, A., M. Kashyap, and A. Gupta. “Role of TSH and O-GTT Screening in Pregnancy Induced Hypertension”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 3, no. 3, Jan. 2017, pp. 720-3, https://www.ijrcog.org/index.php/ijrcog/article/view/1041.