1 Department of Psychiatry, Hospital Universitario Ramón y Cajal, Madrid.
2 Department of Psychiatry, Hospital Universitario de Guadalajara, Guadalajara.
3 Corresponding Author: Daniel Hernández Huerta, MD, PhD, Department of Psychiatry, Hospital Universitario Ramón y Cajal, Ctra. de Colmenar Viejo km. 9,100 28034 Madrid, Spain (daniel.hernandez@salud.madrid.org).