Hsiao, Chia-Chieh
Hsu, Hsueh-Min
Yang, Chung-May
Yang, Chang-Hao http://orcid.org/0000-0002-4328-8716
Article History
Received: 26 December 2018
Revised: 20 March 2019
Accepted: 6 April 2019
First Online: 17 April 2019
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 research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was waived due to the retrospective nature of this study.