Published on in Vol 4 , No 1 (2018) :Jan-Mar
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/8997, first published
.

1 Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, BR
2 Escola Nacional de Ciências Estatísticas, Rio de Janeiro, BR