Zhuo, Chuanjun
Cheng, Langlang
Li, Gongying
Xu, Yong
Jing, Rixing
Li, Shen
Zhang, Li
Lin, Xiaodong
Zhou, Chunhua
Article History
First Online: 2 February 2019
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: The Tianjin Anding Hospital ethics review board approved this study and all patients provided written consent. 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.
: Informed consent was obtained from all individual participants included in the study.