1. School of Social Work, San Diego State University, San Diego, California
2. Center for Alcohol and Drug Research Studies and Services, San Diego State University, San Diego, California
3. Department of Emergency Medicine-EMS Division, Walter Reed National Military Medical Center, Bethesda, Maryland
4. Department of Emergency Medicine, US Naval Hospital Rota, Cádiz, Spain
5. Health and Behavioral Sciences Department, Naval Health Research Center, San Diego, Calilfornia