Funding for this research was provided by:
Bill and Melinda Gates Foundation
Fundação de Amparo à Pesquisa do Estado do Amazonas
Text and Data Mining valid from 2018-03-20
Received: 3 November 2017
Accepted: 7 March 2018
First Online: 20 March 2018
Ethics approval and consent to participate
: This study was approved by the Brazilian National Committee of Ethics (CONEP) (349.211/2013) and by the Committee of Ethics for Clinical Investigation from Barcelona Hospital Clinic (7306/2012). All participants were informed about the objectives of the study as well as potential risks and benefits of their participation in the study. An informed consent form was signed by all study participants or by a parent or legal guardian in case of participants younger than 18 years. Children between 12–17 years signed an additional assent form.
: Not applicable.
: The authors declare that they have no competing interests.
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