1. Faculty of Psychology, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico
2. Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Mexico City, Mexico
3. Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California, San Diego, California, USA
4. Department of Anthropology, Department of Psychiatry, University of California, San Diego, California, USA
5. US-Mexico Border Health Commission, El Colegio de la Frontera Norte, Tijuana, Baja California, Mexico