Preprint
ARPHA Preprints
https://doi.org/10.3897/arphapreprints.e68495 (10 May 2021)
https://doi.org/10.3897/arphapreprints.e68495 (10 May 2021)
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ARPHA Preprints
doi:
10.3897/arphapreprints.e68495
First posted
10 May 2021
Authors
Mariana Rivera Rivera-Higueras 
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Universidad de Veracruz, Veracruz, Mexico
Conflict of interest
The authors have declared that no competing interests exist.
This is an open access preprint distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.