Received: 15 January 2022
Accepted: 10 June 2022
First Online: 23 June 2022
: We obtained ethical approval (N°2020-8-165) from the Ethics Committee for Health Research of Burkina Faso to conduct this study. To respect ethical principles, written informed consent (assent for minors) was obtained from each participant before the interview. The patient could choose to delegate another family member to answer the questions on his or her behalf if the person had more information about the expenses incurred. Confidentiality of the data collected from the participants was ensured during and after the survey.All methods were applied in accordance with the relevant guidelines and regulations.Informed consent was obtained from both the adult participants and the parent(s)/guardian(s) of all under-16s.
: None declared
: All participants in this study have given their favorable opinion for the publication of the results.