Received: 2 September 2019
Accepted: 11 August 2020
First Online: 10 September 2020
Ethics approval and consent to participate
: Informed consent was mentioned in a few lines in the preamble of questionnaire. When the participant was consenting, he completed the questionnaire and submitted it online. The study was approved by the Institutional Ethics Committee of the Medical Research Center of Lambaréné (CERMEL) in Gabon. The Institutional Ethics Committee is a partner of the National Ethics Committee. The Institutional Ethics Committee is a member of the MARC network (Mapping African Research ethics review Capacity) and is registered with Registration Office for Human Research Protections with the numbers: IORG0007336 / IRB00008812. The protocol of the study has been registered with the number CEI-CERMEL 021/2018.
: Not applicable.
: The authors declare that they have no competing interests.