Funding for this research was provided by:
Sanming Project of Medicine in Shenzhen (SZSM201612092)
Research and Development Projects of Shenzhen (JCYJ2017030711175218)
the basic research project of Peking University Shenzhen Hospital (JCYJ2018004)
Text and Data Mining valid from 2019-11-06
Received: 17 May 2019
Accepted: 23 September 2019
First Online: 6 November 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Peking University Shenzhen Hospital (Ethics Committee of Peking University Shenzhen Hospital (research)  38th).
: The authors declare that they have no competing interests.