Zhu, Qinchang
Yu, Zhiqiang
Kabashima, Tsutomu
Yin, Sheng
Dragusha, Shpend
El-Mahdy, Ahmed F. M.
Ejupi, Valon
Shibata, Takayuki
Kai, Masaaki
Article History
Received: 22 December 2014
Accepted: 8 April 2015
First Online: 19 May 2015
Competing interests
: The authors declare no competing financial interests.