Pérez-González, Andrés Felipe. “Catatonia and Delirium in Neuropsychiatric Patients: Frequency, Phenomenology and Outcome”. Archivos de Neurociencias 20, no. 3 (September 1, 2015): 190–200. Accessed September 13, 2025. https://archivosdeneurociencias.org/index.php/ADN/article/view/91.