Funding for this research was provided by:
Chinese University of Hong Kong (Direct Grant (ref no.: 2014.1.076))
Text and Data Mining valid from 2019-07-02
Received: 29 January 2019
Accepted: 24 June 2019
First Online: 2 July 2019
Ethics approval and consent to participate
: Informed written consents from patients were obtained. Use of tissues had been approved by the Joint Chinese University of Hong Kong—New Territories East Cluster Clinical Research Ethics Committee.
: Not applicable.
: The authors declare that they have no competing interests.