Received: 3 December 2019
Accepted: 18 June 2020
First Online: 26 June 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Benin National Ethics Committee for Health Research of the Ministry of Health (CR n°05 on 26/01/2017 and N°15/MS/DC/SGM/DRFMT/CENRS/SA on 07/04/2017). Written informed consent of the enrolled children’s parents was obtained after they received complete information about the study.
: Not applicable.
: The authors declare that they have no competing interests.