1. International Health Program, School of Medicine, National Yang-Ming University, Taipei, Taiwan;
2. Division of Clinical Toxicology & Occupational Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan;
3. Institute of Environmental & Occupational Health Sciences, School of Medicine, National Yang-Ming University, Taipei, Taiwan;
4. Department of Emergency Medicine, Tan Tock Seng Hospital, Singapore, Singapore;
5. Centro de Investigaciones e Intervenciones en Salud, Leon, Nicaragua;
6. Pan American Health Organization, Tegucigalpa, Honduras