Sun, Xiaochuan
Li, Chen
Cao, Yihan
Shi, Ximin
Li, Li
Zhang, Weihong
Wu, Xia
Wu, Nan
Jing, Hongli
Zhang, Wen
Article History
Received: 6 February 2018
Accepted: 29 March 2018
First Online: 22 May 2018
Ethics approval and consent to participate
: A written informed consent was obtained from each patient. The Ethics Committee of Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, approved this study (number of Ethics documents: ZS-944).
: The authors declare that they have no competing interests.
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