Sánchez-Rivero, Irene, et al. “The Symptom in the Body. Monosymptomatic Psychosis and Hypochondriasis: A Report of Two Cases”. Actas Españolas De Psiquiatría, vol. 43, no. 3, May 2015, pp. 122-4, https://actaspsiquiatria.es/index.php/actas/article/view/425.