Funding for this research was provided by:
The Society for the Relief of Disabled Children
Text and Data Mining valid from 2018-08-28
Received: 26 February 2018
Accepted: 13 August 2018
First Online: 28 August 2018
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of the University of Hong Kong/ Hospital Authority Hong Kong West Cluster (IRB reference number: UW 13–323).
: Not applicable
: The authors declare that they have no competing interests.
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