Liu, Yujie
Wang, Jun
Li, Zongmin
Li, Hua
Funding for this research was provided by:
the Scientific Research Foundation for the Excellent Middle-Aged and Youth Scientists of Shandong Province of China (BS2010DX037)
National Natural Science Foundation of China (61379106)
the Shandong Provincial Natural Science Foundation (ZR2013FM036, ZR2015FM011)