1. Centre for Tropical Medicine, University of Brasília (UnB), University Campus Darcy Ribeiro, Asa Norte, Brasília—DF 70904970, Brazil
2. Federal Institute of Education, Science and Technology of Tocantins, Araguaína – Tocantins 77824-838, Brazil
3. Secretariat of Health Surveillance, Ministry of Health of Brazil, Brasília – Federal District 70058-900, Brazil
4. National Institute for Science and Technology for Health Technology Assessment (IATS/CNPq), Porto Alegre, Rio Grande do Sul 90035-903, Brazil