Text and Data Mining valid from 2018-12-01
Received: 23 March 2017
Accepted: 3 December 2018
First Online: 17 December 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee of the National Center for Child Health and Development and the parental written informed consent was obtained for participation in this study and publication of data (IRB approval number 1614). This work was previously presented at the 17th IPNA Congress in Iguaçu, Brazil.
: A written consent for publication was obtained from the parents.
: The authors have no competing interests relevant to this study.
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