Salman, Ahmed, Norma Zayed, Ahmed Mansour, Ramy Howaidi, Ahmed Foly, Mohammed ElSharkawy, and Ahmed Abdelgalil. 2021. “Role of Pre–extubation Fentanyl in Mastectomy: A Randomized, Controlled, Double–blind Study”. Anaesthesia, Pain & Intensive Care 25 (2), 143-49. https://doi.org/10.35975/apic.v25i2.1462.