Li, Ming-Xia
Jiang, Zhi-Qiang
Xie, Wen-Jie
Miccichè, Salvatore
Tumminello, Michele
Zhou, Wei-Xing
Mantegna, Rosario N.
Article History
Received: 25 February 2014
Accepted: 14 May 2014
First Online: 30 May 2014
Competing interests
: The authors declare no competing financial interests.