Funding for this research was provided by:
Bloomberg Family Foundation (CINYS/1305)
Text and Data Mining valid from 2018-12-01
Received: 18 April 2018
Accepted: 17 December 2018
First Online: 27 December 2018
Ethics approval and consent to participate
: The Mexican Institute of Public Health (in Spanish, INSP) Research Biosecurity and Ethics Committees approved the three stages of this study (protocol records: CINyS-1099, CINyS-1102). A written informed consent was obtained from the parents and an oral informed assent from the children prior to their participation.
: Not applicable.
: The authors declare that they have no competing interests.
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