Chen, Miao
Zhuang, Junling
Zhou, Daobin
Xu, Ying
Zhao, Yongqiang
Wang, Shujie
Zhang, Wei
Duan, Minghui
Zhu, Tienan
Li, Jian
Cai, Huacong
Cao, Xinxin
Han, Bing
Article History
Received: 2 May 2016
Accepted: 27 December 2016
First Online: 13 January 2017
Compliance with ethical standards
: All procedures followed were in accordance with the ethical standards of the Ethics Committee of Peking Union Medical College Hospital and with the Helsinki Declaration of 1975, as revised in 2008. Patient information was anonymized and de-identified prior to analysis.
: The authors declare that they have no conflicts of interest.