1. Department of Noncommunicable Disease Surveillance, Ministry of Health and Social Welfare, Asunción 001221, Paraguay
2. Department of Public Health, Faculty of Medicine, National University of Asunción, Asunción 011221, Paraguay
3. Faculty of Medicine, Riga Stradins University, LV-1007 Riga, Latvia
4. Department of Medical Education, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
5. School of Medicine, National University of Mar del Plata, Mar del Plata 7600, Argentina