Gálvez, R., J. Caballero, M. Atero, S. Ruiz, and J. Romero. “Venlafaxine Extended Release for the Treatment of Chronic Pain. A Series of 50 Cases”. Actas Españolas de Psiquiatría 32, no. 2 (March 1, 2004): 92–97. Accessed June 8, 2025. https://actaspsiquiatria.es/index.php/actas/article/view/1152.