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Authors
Xie, Xia
Song, Yuqing
Yang, Hui
Nie, Anliu
Chen, Hong https://orcid.org/0000-0002-1867-1107
Li, Ji-ping
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Article History
Received: 5 March 2018
Accepted: 12 July 2018
First Online: 16 August 2018
Ethics approval and consent to participate
: Ethical approval for the study was granted by the Medical Ethics Committee of West China Hospital, China (reference number 20160041). Written informed consent was provided by all participants.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
