ISHRAT YOUSUF, SHRUTI REDHU, LAKSHMI BHAVANA, KUMARI PALLAVI. Ultrasound-Guided Bilateral Infraorbital Nerve Block in Endoscopic Transnasal Transsphenoidal Pituitary Surgery: A Randomized Comparison of 0.2% Ropivacaine Alone Versus 0.2% Ropivacaine with Fentanyl for Intraoperative Analgesia and Postoperative Rec. International Journal of Pharmacy Research & Technology (IJPRT), [S. l.], v. 16, n. 1, p. 3587–3599, 2026. Disponível em: https://ijprt.org/index.php/pub/article/view/2074. Acesso em: 18 aug. 2026.