Funding for this research was provided by:
National Natural Science Foundation of China (81601824)
the interdisciplinary medicine Seed Fund of Peking University (BMU2017MX013)
Text and Data Mining valid from 2019-05-15
Received: 2 March 2019
Accepted: 15 April 2019
First Online: 15 May 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies were got approval from the Ethics Committee of Peking University Third Hospital according to the 1964 Helsinki Declaration and its latter amendments or comparable ethical standards.
: Informed consent was signed from all participants included in the study.