Funding for this research was provided by:
Hong Kong Baptist University (LIUYE/15-16/01-CLNC)
Shenzhen University (No. 2018020)
Received: 18 May 2019
Accepted: 21 July 2019
First Online: 6 August 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethical Committee of Hong Kong Baptist University in accordance with the “Institutional Guidelines and Animal Ordinance” of the Department of Health, Hong Kong Special Administrative Region (Registration No. LIUYE/15-16/01-CLNC).
: Not applicable.
: The authors declare that they have no competing interests.