Text and Data Mining valid from 2019-11-13
Received: 9 July 2019
Accepted: 14 October 2019
First Online: 13 November 2019
Ethics approval and consent to participate
: Ethical approval was obtained from for The Joint Chinese University of Hong Kong – New Territories East Cluster Clinical Research Ethics Committee, CREC Ref.No.: 2018.589 (The Joint CUHK-NTEC CREC). Written consent was obtained from all participants.
: Not Applicable.
: The authors declare that they have no competing interests.