Received: 22 November 2020
Accepted: 17 March 2021
First Online: 9 April 2021
: Ethical approval was obtained from the SingHealth institutional ethics review board approval (SingHealth CIRB 2017/3127). Informed consent was obtained from included healthcare professionals and parents, with further assent obtained from children as deemed appropriate.
: A patent ‘A personal transportation apparatus’ was filed on 22 Jan 2018. 2019–07025. Application Number 10201800576 V, eFile ref. number: E201801220392T. Publication was on ExternalRef removed above patent was abandoned on 11 May 2020 before its National phase due on 22 July 2020. The authors declare no current conflict of interest as the patent filing has been abandoned. The sponsors had no role in design, execution, interpretation or writing of the study.