Received: 30 November 2018
Accepted: 21 August 2019
First Online: 11 September 2019
Ethics approval and consent to participate
: Written informed consents were obtained from all participants and the parents of the minor participants, following the Ramathibodi Hospital Institutional Review Board (protocol ID 06–55-46).
: Written informed consent to publish was obtained from the parents or legal guardians of the participants whose individual data was detailed in the manuscript.
: The authors declare that they have no competing interests.