- Correspondence to Dr Zhengyu Li, West China Second University Hospital, Sichuan University, No. 20 Section 3, Renmin South Road, Chengdu, Sichuan 610041, People’s Republic of China;
- Received March 11, 2020
- Revision received July 16, 2020
- Accepted July 17, 2020
- First published August 19, 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.