Wang, Rongsheng
Lu, Quanming
Nakamura, Rumi
Huang, Can
Du, Aimin
Guo, Fan
Teh, Waileong
Wu, Mingyu
Lu, San
Wang, Shui
Article History
Received: 15 May 2012
Accepted: 29 October 2015
First Online: 7 December 2015
Competing interests
: The authors declare no competing financial interests.