Wen, Jin
Ji, Zhi G.
Li, Han Z.
Article History
Received: 12 July 2017
Accepted: 9 February 2018
First Online: 17 February 2018
Ethics approval and consent to participate
: This study was approved by the ethics committee of Peking Union Medical College Hospital and written informed consent from each of the patients were acquired.
: Not applicable.
: The authors declare that they have no competing interests.
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