Received: 7 December 2017
Accepted: 25 August 2019
First Online: 9 September 2019
Ethics approval and consent to participate
: The study protocol was approved by the Clinical Research Ethics Committee of Public Health’s School (Kinshasa, DRC), number ESP/CE/106/2015. Patient recruitment was based on free and informed verbal consent, in accordance with the Helsinki recommendations. They were informed on the objectives of the study, its outcome, its safety and its merits.
: Not applicable.
: The authors declare that they have no competing interests.