Funding for this research was provided by:
Shenzhen Municipal Government of China (CXZZ20150330171521403)
Text and Data Mining valid from 2019-04-16
Received: 17 January 2019
Revised: 25 February 2019
Accepted: 19 March 2019
First Online: 16 April 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.