Shankar MN, Selvan VS, Sreedharan N. An observational study comparing the effect of sphenopalatine artery block on bleeding in endoscopic sinus surgery. Int J Otorhinolaryngol Head Neck Surg [Internet]. 2017 Sep. 22 [cited 2025 May 25];3(4):1010-4. Available from: https://www.ijorl.com/index.php/ijorl/article/view/496