Egbe, Thomas Obinchemti
Njamen, Theophile Nana
Essome, Henri
Tendongfor, Nicholas
Article History
Received: 12 April 2019
Accepted: 6 April 2020
First Online: 10 April 2020
Ethics approval and consent to participate
: Ethical clearance was obtained from the ethics committee of the Douala General Hospital. Participants gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.