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. 2017 Aug 24;12(8):e0179052. doi: 10.1371/journal.pone.0179052

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© 2017 Guimarães-e-Silva et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — A) Location of the Brazil country in South America, B) Location of Maranhão State (MA) in Brazil; C) Location of the municipality of Caxias in MA; D) Sampling sites in Salobro (▲) and E) Sampling sites in Bom Jardim (●). (Source: IBGE System Coordinate UTM—FUSE 23 Datum SAD 2017).