Received: 14 July 2019
Accepted: 11 May 2020
First Online: 20 May 2020
Ethics approval and consent to participate
: No ethical approval was required for this study. The analysis relied upon publicly available dataset, which had removed all identifying data to guarantee participant anonymity. Ethics approval for the survey was obtained by the institutional review board of ORC Macro (Calverton, MD, USA) and by the Mali Ministry of Health.
: Not applicable.
: We declare no competing interests.