Shen, Yuan Chi http://orcid.org/0000-0003-2389-7634
Wang, Hung Jen http://orcid.org/0000-0003-0910-5581
Chuang, Yao Chi http://orcid.org/0000-0002-1468-3792
Article History
Received: 5 April 2018
Accepted: 30 May 2018
First Online: 7 June 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.
: Because this study is a retrospective chart review study, so informed consent was not obtained from all individual participants.