- Correspondence to Dr Haijun Wu, Department of Radiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China;
- Received June 6, 2018
- Revised June 15, 2018
- Accepted June 19, 2018
- First published July 12, 2018.
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.