Anandan, Somarajan, Sajeesh S Rajendran, Jyothish P Kumar, and Divine S Shajee, trans. “A Rare Cause for Delirium: COPE Syndrome”. Indian Journal of Case Reports 10, no. 6 (July 6, 2024): 176–178. Accessed December 8, 2025. https://www.mansapublishers.com/ijcr/article/view/4567.