- Correspondence to Dr Jonas Rosendahl, Department of Internal Medicine, Neurology and Dermatology, Division of Gastroenterology and Rheumatology, University Clinic of Leipzig, Liebigstraße 20, Leipzig 04103, Germany;
- Received April 11, 2014
- Revised August 18, 2014
- Accepted August 21, 2014
- First published September 24, 2014.
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