1. School of Primary Care, Population Science and Medical Education, Faculty of Medicine, University of Southampton, UK
2. Universidad Nacional Autónoma de Honduras, Francisco Morazán, Honduras
3. University of Rochester School of Medicine and Dentistry, New York, USA
4. Georgetown University School of Medicine, Washington D.C., USA
5. Yale School of Medicine, New Haven, Connecticut, USA
6. Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, USA