Malone, Marion K, and Timothy Lau. “Hidden in Plain Sight: Recognizing Catatonia Amidst Its Medical Complications”. University of Ottawa Journal of Medicine 5, no. 2 (November 2, 2015): 22–25. Accessed January 29, 2022. https://uottawa.scholarsportal.info/ottawa/index.php/uojm-jmuo/article/view/1414.