- Correspondence to Dr David T Ewart, Division of Rheumatic and Autoimmune Diseases, Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455, USA; and Dr Clifford J Steer, Departments of Medicine and Genetics, Cell Biology and Development, University of Minnesota Medical School, Minneapolis, MN 55455, USA;
- Received May 17, 2018
- Revised July 2, 2018
- Accepted July 3, 2018
- First published August 4, 2018.
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