Zhou, Tengfei
Li, Tianxiao
Zhu, Liangfu
Wang, Ziliang
Bai, Weixing
Xue, Jiangyu
Feng, Guang
Article History
Received: 28 September 2017
Accepted: 20 March 2018
First Online: 22 May 2018
Compliance with Ethical Standards
:
: All 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, the 1964 Declaration of Helsinki, and its later amendments or comparable ethical standards. For this type of study, formal consent was not required.
: Retrospective audit of anonymized patient records does not apply.