1. Department of Public Health Sciences, University of North Carolina at Charlotte, Charlotte, NC, USA;
2. School of Public Health, Faculty of Medicine, Imperial College London, London, UK;
3. Centro de Finanzas, IESA, Caracas, Venezuela;
4. University of the Andes School of Management (Uniandes), Bogotá, Colombia;
5. Ingenieria Financiera, Universidad Piloto de Colombia, Bogotá, Colombia;
6. Idalion Capital Group, London, UK