“Comparison of the efficacy of epidural blood patch and transnasal sphenopalatine ganglion block in the treatment of postspinal puncture headache” (2023) Annals of Medical Research, 30(9), pp. 1106–1111. Available at: http://annalsmedres.org/index.php/aomr/article/view/4521 (Accessed: 4 April 2025).