Hu, Wenhao
Zhang, Xuesong
Yu, Jiayi
Hu, Fanqi
Zhang, Hao
Wang, Yan https://orcid.org/0000-0001-8550-9911
Article History
Received: 13 October 2017
Accepted: 2 January 2018
First Online: 15 January 2018
Ethics approval and consent to participate
: This study was conducted with approval from the Ethics Committee of Chinese PLA General Hospital and was performed in accordance with the Declaration of Helsinki. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
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