Funding for this research was provided by:
National Natural Science Foundation of China (81771740)
the sub-project of the National Science Technology Pillar Program of China (2010CB529103)
the Capital Health Research and Development of Special Fund Program (2011-4021-03)
the Peking University Clinical Research Program (PUCRP201305)
the Youth clinical research project of Peking University First Hospital (2018CR04)
Text and Data Mining valid from 2019-04-17
Received: 13 January 2019
Accepted: 4 April 2019
First Online: 17 April 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Medical Ethics Review Boards of Peking University First Hospital. Signed informed consent was obtained from all patients prior to inclusion.
: All authors gave their consent for publication.
: The authors declare that they have no competing interests.
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