- Correspondence to Anderson Ferreira, Ortofarma Laboratório de Controle da Qualidade, Empresarial Park Sul, n. 39, Matias Barbosa, MG 36120-000, Brazil;
- Received June 28, 2016
- Revised November 3, 2016
- Accepted November 8, 2016
- First published November 25, 2016.
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