Funding for this research was provided by:
Leibniz-Institut für Agrartechnik und Bioökonomie e.V. (ATB)
Received: 9 March 2021
Accepted: 8 August 2021
First Online: 26 August 2021
: This study was reviewed and approved by the Institutional Committee of Ethics in Health Research (Comité Institutionnel d’Ethique de la Santé) of the College of Medical Techniques of Bukavu (ISTM-Bukavu), (reference number: ISTM-BKV/CERPS/CIES/ML/04/2019). All participants signed the consent form, and were informed that their participation was voluntary, anonymous, and they could quit at any time.
: Not applicable.
: Authors declare that they have no competing interests.