Perumal, Vanamail. “Meta-Analysis on Maternal Deaths and Assessing Significant Factors for Heterogeneity Between States of India During 2016”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 10, no. 8 (July 26, 2021): 3192–3196. Accessed October 26, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/10419.