Bhati, Balgopal Singh, Arti Patidar, Archana Kori, and Indra Bhati. “An Unusual Case of Constriction Ring Dystocia”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 5, no. 7 (February 23, 2017): 2431–2433. Accessed October 7, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/1331.