- Correspondecne to Dr Vanessa Salete de Paula, Institution: Instituto Oswaldo Cruz—FIOCRUZ, Pav. Helio e Peggy Pereira, Av. Brasil, 4365, Manguinhos, Rio de Janeiro, RJ 21360-040, Brazil;
- Received June 20, 2014
- Revised August 4, 2014
- Accepted September 3, 2014
- First published September 24, 2014.
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