Funding for this research was provided by:
National Natural Science Foundation of China (21266024, 31360077)
Ningxia University (ZR1711)
IDENTIFIERS
PEER REVIEW METHOD
: Single-blind
PUBLICATION HISTORY
: Received 3 September 2018; Accepted 25 October 2018; Accepted Manuscript published 26 October 2018; Advance Article published 7 November 2018; Version of Record published 23 November 2018