Funding for this research was provided by:
National Natural Science Foundation of China (31500961, 61575065, 31771256)
Guangdong Scientific Project (2014A020220015, 2015A020219015)
Text and Data Mining valid from 2018-01-17
Received: 19 September 2017
Accepted: 28 November 2017
First Online: 17 January 2018
Compliance with ethical standards
: The authors declare no conflicts of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.