Received: 18 November 2019
Accepted: 26 April 2020
First Online: 16 July 2020
Ethics approval and consent to participate
: All subjects had given written informed consent. The clinical study protocol was approved by The Joint Chinese University of Hong Kong—New Territories East Cluster Clinical Research Ethics Committee. All animal studies were performed in accordance with guidelines approved by the Animal Experimentation Ethics Committee of The Chinese University of Hong Kong.
: Not applicable.
: The authors declare that they have no competing interests.