- Correspondence to Dr Christoph T Berger, Departmentof Internal Medicine, University Hospital Basel, Basel 4031, Switzerland; ; Dr Thomas Daikeler, Department of Rheumatology, University Hospital Basel, Basel, Switzerland;
- Received November 6, 2018
- Revised December 4, 2018
- Accepted December 10, 2018
- First published January 22, 2019.
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