Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (MOST 104-2221-E-259-014 and MOST 105-2221-E259-007)
Article History
Received: 1 August 2017
Accepted: 18 January 2018
First Online: 24 January 2018
Compliance with Ethical Standards
: This study was funded by the research grants from the Ministry of Science and Technology, Taiwan (Grant No: MOST 104–2221-E-259-014 and MOST 105–2221-E259–007). All authors declare that they have no conflict of interest. All procedures performed in this study 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. The study was approved by the Institutional Review Board (IRB) of Hualien Hospital and National Dong Hwa University. Informed consent was obtained from all individual participants recruited in the present study.