Funding for this research was provided by:
National Natural Science Foundation of China (81672234)
Health and Family Planning Commission of Sichuan Province (SZBC2017022)
Shenzhen Science and Technology Innovation Council (JCYJ20150330102401096, GCZX2015043017241191, JCYJ20160226192924528)
Received: 3 February 2019
Accepted: 20 May 2019
First Online: 29 May 2019
: All the animal related experiments were approved by the Institutional Animal Ethics Committee of the Shenzhen Second People’s Hospital, Shenzhen, Guangdong Province, China.
: Not applicable.
: The authors declare that they have no competing interests.