Gani, H., P. Prifti, M. Naco, R. Domi, V. Beqiri, D. Torba, and R. Tare. “The Incidence of Postoperative Delirium in Elderly Patients Undergoing Urologic Surgery”. Anaesthesia, Pain & Intensive Care, Feb. 2019, pp. 262-5, https://mail.apicareonline.com/index.php/APIC/article/view/526.