Text and Data Mining valid from 2020-03-06
Received: 16 September 2019
Accepted: 21 February 2020
First Online: 6 March 2020
Ethics approval and consent to participate
: Administrative approval was obtained from the Managing Director of the Douala Referral Hospital (No 060 AR/MINSANTE/HGD/DM/02/17) while ethical clearance was obtained from the ethical board of “Université des Montaigne” Banganté (No 2017/006/Udm/PR/CIE).Written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.