Funding for this research was provided by:
Agence Nationale de Recherches sur le Sida et les Hépatites Virales (ANRS 12288)
Text and Data Mining valid from 2020-01-15
Received: 3 September 2019
Accepted: 9 January 2020
First Online: 15 January 2020
Ethics approval and consent to participate
: The National Ethics Committee of Cameroon approved the study (N° 2013/08/349/L/CNERSH/SP), and each participant signed a letter of informed consent.
: Not applicable.
: The authors declare that they have no competing interests.