Xue, Zhiyu
Zhang, Yan
Tao, Jing
Kang, Yuan
Chen, Zeqin
Xue, Ying
Funding for this research was provided by:
National Natural Science Foundation of China (21203153)
Department of Science and Technology of Sichuan Province (2011JY0136)
Education Department of Sichuan Province (12ZA174)
China West Normal University (11B002)