. 2021 Dec 21;40:252. doi: 10.11604/pamj.2021.40.252.28899
Copyright: Jean Claude Habineza et al.
The Pan African Medical Journal (ISSN: 1937-8688). This is an Open Access article distributed under the terms of the Creative Commons Attribution International 4.0 License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
difficulty in access