Zhu, Saiyong
Russ, Holger A.
Wang, Xiaojing
Zhang, Mingliang
Ma, Tianhua
Xu, Tao
Tang, Shibing http://orcid.org/0000-0001-8592-3477
Hebrok, Matthias
Ding, Sheng
Article History
Received: 11 July 2015
Accepted: 2 November 2015
First Online: 6 January 2016
Competing interests
: The authors declare no competing financial interests.