Hu, Pan-pan
Yu, Miao
Liu, Xiao-guang
Chen, Zhong-qiang
Liu, Zhong-jun
Article History
Received: 7 September 2017
Accepted: 25 January 2018
First Online: 2 February 2018
Ethics approval and consent to participate
: The present study was approved by the Institutional Research Board (IRB) of Peking University Third Hospital (registration number: IRB00006761–2012033), and informed consent for participation and publication was obtained from the participants.
: Not Applicable.
: The authors declare that they have no competing interests.
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