Received: 21 October 2020
Accepted: 16 January 2021
First Online: 4 February 2021
Ethics approval and consent to participate
: Informed consent was obtained from all patients and parents enrolled in this study. The study was approved by the Hunter New England Area Health Ethics Committee, therefore, the study has been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki. The authorization number HREG/10/HNE/132 was issued.
: Consent was obtained to publish the figures used in this paper.
: The authors declare that they have no competing interests.