Chang, Ching-Hao http://orcid.org/0000-0003-0878-9328
Dou, Kun-Peng
Guo, Guang-Yu
Kaun, Chao-Cheng http://orcid.org/0000-0002-5400-4758
Article History
Received: 1 February 2017
Revised: 26 May 2017
Accepted: 21 June 2017
First Online: 25 August 2017
Competing interests
: The authors declare no conflict of interest.