Nka, Alex Durand http://orcid.org/0000-0002-9358-8661
Sosso, Samuel Martin
Fokam, Joseph
Bouba, Yagai
Teto, Georges
Simo Rachel, Rachel
Tiga, Aline
Yimga, Junie
Nukenine, Elias Nchiwan
Nanfack, Aubin Joseph
Takou, Désiré
Aroga, Zélateur
Colizzi, Vittorio
Ndjolo, Alexis
Article History
Received: 15 July 2019
Accepted: 18 September 2019
First Online: 26 September 2019
Ethics approval and consent to participate
: This study obtained ethical clearance from the Institutional Review Board of the University of Douala (N°CEI-UD/544/04/2016/T) and also authorization from CIRCB where the study was conducted. The participants freely signed informed consent forms, which were written in French and English (with respect to the first language of the participant), while the minors (< 16 years) gave their assent in addition to parent/guardian consent.
: Not applicable.
: The authors declare that they have no competing interests.