Received: 22 July 2020
Accepted: 17 November 2020
First Online: 23 November 2020
Ethics approval and consent to participate
: This study was approved by the Bioethics Committee for Health Research from the Togo Ministry of Health ("Comité de Bioéthique pour la Recherche en Santé (CBRS)"), Ref N0: 0101/2016/MS/CAB/DGS/DPLET/CBRS).
: Not applicable.
: The authors declare that they have no competing interests.