1. Dr. Zitko is with the Unidad de Estudios Asistenciales, Hospital Barros Luco Trudeau, Santiago, Chile, and with the Faculty of Medicine, Pontificia Universidad Catolica de Chile, Santiago. Dr. Ramírez and Dr. Sepúlveda are with the School of Public Health, Faculty of Medicine, Universidad de Chile, Santiago. Dr. Sepúlveda is also with Clinical Psychiatry Service, Hospital Barros Luco Trudeau, Santiago, where Ms. Ortiz is affiliated. Dr. Markkula and Mr. Norambuena are with the Department of Mental Health...