Funding for this research was provided by:
National Institutes of Health (S21MD001830)
Colgate-Palmolive (Caribbean) Inc.
Received: 26 October 2016
Accepted: 20 December 2017
First Online: 19 January 2018
Ethics approval and consent to participate
: Permission was obtained from the PR Department of Education. The Medical Sciences Campus, University of Puerto Rico (MSC-UPR) Institutional Review Board (Protocol No. 0360105), approved the study. Parental/legal guardian written consent and child assent were obtained prior to enrollment in the study.
: Not applicable.
: The authors declare that they have no competing interests. The study was partially supported by Colgate-Palmolive (Caribbean) Inc. Colgate Palmolive Inc. had no role in the design, collection, analysis, interpretation of data or in writing the manuscript.
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