“Comparison of the Efficacy of Epidural Blood Patch and Transnasal Sphenopalatine Ganglion Block in the Treatment of Postspinal Puncture Headache”. Annals of Medical Research 30, no. 9 (September 27, 2023): 1106–1111. Accessed April 4, 2025. http://annalsmedres.org/index.php/aomr/article/view/4521.