Funding for this research was provided by:
National key research and development projects (2016YFC1000302)
returned overseas Ministry of Education (A70538-3)
Text and Data Mining valid from 2018-03-27
Received: 16 February 2018
Accepted: 6 March 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Peking University Third Hospital (#2014091). The clinical trial registration ID on the Chinese Clinical Trial Registry is ChiCTR-IPR-17010945, ExternalRef removed. All the participants provided written consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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