Salman, Ahmed, Norma Zayed, Ahmed Mansour, Ramy Howaidi, Ahmed Foly, Mohammed ElSharkawy, and Ahmed Abdelgalil. “Role of Pre–extubation Fentanyl in Mastectomy: A Randomized, Controlled, Double–blind Study”. Anaesthesia, Pain & Intensive Care 25, no. 2 (April 26, 2021): 143-149. Accessed January 4, 2025. https://mail.apicareonline.com/index.php/APIC/article/view/1462.