Shang, Hui-Ying
Li, Zhong-Hu
Dong, Miao
Adams, Robert P.
Miehe, Georg
Opgenoorth, Lars
Mao, Kang-Shan
Article History
Received: 30 November 2014
Accepted: 11 March 2015
First Online: 15 May 2015
Competing interests
: The authors declare no competing financial interests.