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Article History

Received: 23 April 2020

Accepted: 20 January 2021

First Online: 28 January 2021

Ethics approval and consent to participate

: This study is part of a doctoral thesis. The thesis project is being submitted to the ethics committee of the University of Parakou (Benin) and approval has already been received. In addition to the opinion of the ethics committee, an administrative letter will be sent to local authorities to inform them of the study and about their contribution. Before the start of the study, the interested parties and the objectives of this study will be explained to those involved. Free and informed written consent from the subjects to be investigated will be obtained. Confidentiality will be required of any person involved in the collection or management of data, who will have access, for the purposes of the collection, to the personal data of the subjects enrolled. No personal data will be disseminated.

: Not applicable.

: The authors state that there is no conflict of interest.