Jogi SR, Ekka AR. Maternal mortality review by three delay model: a retrospective study from a tertiary care hospital of Chhattisgarh. Int J Reprod Contracept Obstet Gynecol [Internet]. 2020 Dec. 26 [cited 2025 Oct. 13];10(1):262-7. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/9419