- Correspondence to Professor Changying Chen, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
- Received March 16, 2020
- Revised September 15, 2020
- Accepted September 30, 2020
- First published October 15, 2020.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.