Paudel D, Chettri S, Shah S, Shah B, Manandhar S, Mishra S. The Effect of Pterygopalatine Fossa Block (PPFB) during Endoscopic Sinus Surgery (ESS) on Intraoperative Bleeding: A Randomized Control Trial. JBPKIHS [Internet]. 2018 Dec. 20 [cited 2024 Nov. 21];1(2):35-41. Available from: https://nepjol.info/index.php/jbpkihs/article/view/22076