1. From the Department of Neuropsychiatry, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico (RP-E, PA-G, JR-B); the Laboratory of Experimental Psychiatry, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico (RP-E); and the Department of Neuroendocrinology, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico (CAR-G, GGA-R, LP-O).