Article History
First Online: 31 January 2020
Compliance with Ethical Standards
: In completion of the study, data analyses, and manuscript, we maintained compliance with ethical standards. All procedures performed in the study involving human participants were in accordance with the ethical standards of the Institutional Review Board from the University of Massachusetts Boston (study number: 2016076) and are in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was also obtained from all parent/legal guardians of the participants in the study. Child participants also received informed consent about their participation in the study.
: The authors declare that they have no conflict of interest.