Funding for this research was provided by:
National Tsing Hua University (100N2053E1)
Hungkuang University and Kuang Tien General Hospital (HK-KTOH-105-04)
Article History
Received: 13 August 2018
Accepted: 28 December 2018
First Online: 8 January 2019
Compliance with ethical standards
:
: The authors declare no competing financial interests.