Article History
Received: 4 December 2017
Accepted: 8 August 2018
First Online: 17 August 2018
Ethics approval and consent to participate
: The West China Hospital of Sichuan University Biomedical Research Ethics Committee approved the study protocol. All patients provided written informed consent before inclusion. The trial was prospectively registered at ExternalRef removed (ID ChiCTR-INR-17013333).
: Not applicable.
: The authors declare that theye have no competing interest.
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