Funding for this research was provided by:
National Natural Science Foundation of China (61627804, 61371166, 61422107, 61571215, 61671236)
the Natural Science Foundation of Jiangsu Province, China (BK20140610, BK20160634)
ORCID
Lin-sen CHEN: http://orcid.org/0000-0002-1259-135X
Publication History
Received: 2017-02-08
Accepted: 2017-07-12
Crosschecked: 2017-09-15
Content Type
: Review
Copyright
: © Zhejiang University and Springer-Verlag GmbH Germany 2017