Acknowledgements
We would like to thank all the patients and the member of the center involved in the present study. We also like to thank Professors Jie Meng, Liuhua Wei, and Jifei Chen of the Fourth Affiliated Hospital of Guangxi Medical University Inspection Department for their help in the testing management. The authors thank Guangxi Natural Science Foundation, Liuzhou City Science and technology research projects and Guangxi Zhuang Autonomous Region Self-Raised Funds Project for their funding support.