Chang, Hsiu-Hua
Lu, Long-Chuan
Article History
Received: 5 January 2017
Accepted: 23 May 2017
First Online: 30 May 2017
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee 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.