- Correspondence to Dr Hilde Berner Hammer, Rheumatology, Diakonhjemmet Sykehus, Oslo 0319, Norway;
- Received March 26, 2020
- Revised June 6, 2020
- Accepted June 24, 2020
- First published July 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.