Ethical aspects
RBR-229SCM
All responsible parties first signed the informed consent form online and, after that, they signed it in person in two copies, one for the research team and one for the child’s guardian.This study was approved by the Research Ethics Committee of the Hospital de Clínicas de Porto Alegre under number 2019–0230, CAAE: 1537018500005327, and is registered in the Brazilian Clinical Trials Registry (RBR-229SCM).