Dinesh, Aishwarya, Nitu Puthenveettil, and Sobha S. Nair. “A Case of Post Dural Puncture Headache Following Labour Epidural Analgesia, Managed by Sphenopalatine Ganglion Block”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 11, no. 12 (November 25, 2022): 3421–3423. Accessed October 2, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/12283.