Chiu, Yu-Jen
Perng, Cherng-Kang
Ma, Hsu
Article History
Received: 6 November 2017
Accepted: 17 April 2018
First Online: 26 April 2018
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.For this type of study, formal consent was not required.
: None of the authors has a financial interest in any of the products, devices, or drugs mentioned in this manuscript.