Chao, Pen-Chiang
Chou, Yu-Chi
Cheng, Shu-Fen
Article History
First Online: 5 March 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in this study were in accordance with the ethical standards of the Chung Yuan Christian University Institutional Review Board and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.