Zhang, Liwen
Li, Na
Song, Lu
Meng, Qingduan
Xu, Meiyu
Lei, Zhen
Funding for this research was provided by:
National Natural Science Foundation of China (CN) (61205090)
National Natural Science Foundation of China (61107083)
Youth Foundation of Henan Science and Technology University (2014QN027)
Foundation of Educational Commission of Henan Province(CN) (2014GGJS054, 14A510003, 15A470012)