Bakeer, A., K. Abdelhamid, D. Nabil, and M. Rawi. “Perioperative Analgesic Efficiency of Ultrasound-Guided Quadratus Lumborum Block Versus Epidural Analgesia in Bladder Cancer Patients Undergoing Radical Cystectomy”. Open Access Macedonian Journal of Medical Sciences, vol. 10, no. B, Oct. 2022, pp. 2451-6, doi:10.3889/oamjms.2022.10845.