C. Bohara, R. Maharjan, S. Regmi, G. Regmi, A. K. Singh, and A. Shrestha, “Sphenopalatine Ganglion Block versus Conservative Management for Post Dural Puncture Headache in Cesarean Section”, Nep. J. Health Sci., vol. 2, no. 1, pp. 22–26, Aug. 2022.