Ahmed Beniamen Mohamed Hussien, Zaki Taha Saleh, Hala Abdel Sadek Al attar, Yasser Mohamed Nasr. Preoperative regional scalp block versus intraoperative intravenous fentanyl for attenuating intraoperative surgical stress response to supratentorial craniotomy in adult patients under general anaesthesia. Int. J. Res. Pharm. Sci. [Internet]. 2020 Dec. 14 [cited 2025 Jan. 22];11(4):6996-7004. Available from: https://ijrps.com/home/article/view/1863