Preprint
ARPHA Preprints
https://doi.org/10.3897/arphapreprints.e64044 (08 Feb 2021)
https://doi.org/10.3897/arphapreprints.e64044 (08 Feb 2021)
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ARPHA Preprints
doi:
10.3897/arphapreprints.e64044
First posted
08 Feb 2021
Authors
Mireille Belle Mbou Okassa
- Corresponding author
Rectorate of Limoges, Limoges, France
Rectorate of Limoges, Limoges, France
Rectorate of Limoges, Limoges, France
Marien Ngouabi University, Brazzaville, Congo
Marien Ngouabi University, Brazzaville, Congo
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.