Doualla, Marie
Nkeck, Jan René http://orcid.org/0000-0002-4353-2352
Halle, Marie Patrice
Kamdem, Félicité
Agouak, Aude Ingrid
Essouma, Mickael
Lobe, Yonathan Batchama
Ashuntantang, Gloria
Article History
Received: 3 January 2020
Accepted: 23 August 2020
First Online: 31 August 2020
Ethics approval and consent to participate
: The study was approved by the Institutional Ethical Review Board of the University of Douala (Cameroon). All the participants read and signed an informed consent before their inclusion in the study.
: Not applicable.
: The authors declare that they have no competing interests.