- Correspondence to Dr Annelies Boonen, Dapt of Internal Medicine, Div of Rheumatology, Maastricht University Medical Centre+ Internal Medicine, Maastricht 6229 HX, The Netherlands;
- Received November 16, 2020
- Revised March 21, 2021
- Accepted March 23, 2021
- First published April 8, 2021.
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