Funding for this research was provided by:
National Natural Science Foundation of China (81430049, 81772322)
Received: 12 November 2018
Revised: 5 March 2019
Accepted: 18 March 2019
First Online: 29 March 2019
Ethics approval and consent to participate
: All animal experiments were performed in accordance with Animal (Control of Experiments) Ordinance of Hong Kong SAR and approved by the Animal Experimental Ethical Committee of the Chinese University of Hong Kong.
: Not applicable.
: The authors declare that they have no competing interests.
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