Funding for this research was provided by:
Colt Foundation (CF/03/14)
Fundación Solidaridad (CAM/NPL/201622/NIC/MGONZALEZ)
Text and Data Mining valid from 2019-01-16
Received: 2 July 2018
Accepted: 20 December 2018
First Online: 16 January 2019
Ethics approval and consent to participate
: The study was approved by the Institutional Review Boards at the Medical Faculty of UNAN-León (Ref: FWA00004523/IRB00003342) and the Research Ethics Committee of the London School of Hygiene and Tropical Medicine (Ref: 8643/14363) in 2014. A written consent form was provided by all participants in the follow-up study, in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors have no competing interests to declare.
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