Funding for this research was provided by:
National Natural Science Foundation of China (81370494, 31471330)
International Science and Technology Cooperation Project of Henan Province in China (182102410018)
Excellent Foreign Scientist Studio of Henan Province in China (GZS2018001)
Medical service capacity improvement project of Henan Province in China (Yu Wei Medicine  No.66)
the Foundation of Henan Science and Technology Department (172102410014)
Henan Provincial Medical Science and Technology Research Joint Co-construction Project (2018020224)
The key scientific research project of the Foundation of Henan Educational Committee (FHEC, #18A320011)
Foundation of Zhengzhou Collaborative Innovation (FZCI, #18XTZX12003)
Text and Data Mining valid from 2019-09-06
Received: 6 June 2019
Accepted: 29 August 2019
First Online: 6 September 2019
Ethics approval and consent to participate
: The present study was approved by the Research Ethics Committee of Institute of Clinical Medicine, the Fifth Affiliated Hospital of Zhengzhou University. All participants signed informed consent for scientific research.
: Not applicable.
: The authors declare that they have no competing interests.