- Correspondence to Professor Otylia Kowal-Bielecka, Department of Rheumatology and Internal Medicine, Medical University of Bialystok, Ul. M. Sklodowskiej-Curie 24A, Bialystok 15-276, Poland;
- Received May 18, 2016
- Revised August 22, 2016
- Accepted October 9, 2016
- First published November 9, 2016.
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