Received: 8 July 2019
Accepted: 12 December 2019
First Online: 19 December 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Karakter University Hospital. The study does not fall under the Medical Research Involving Human Subjects Act, because there is no infringement of the physical and/or psychological integrity of the subject. For this reason, this study did not have to be reviewed by an accredited Medical Research Ethics Committee (MREC) or the Central Committee on Research Involving Human Subjects. Written informed consent was obtained from each participant and their parents/ caregivers.
: Not applicable.
: The authors declare that they have no competing interests.