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PubMed
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History
- Published online April 1, 2015.
Copyright & Usage
© 2015
Author Information
- HEINER APPEL, MD⇑ and
- JOACHIM SIEPER, MD
- Address correspondence to Dr. H. Appel, Charité Universitätsmedizin Berlin, Campus Benjamin Franklin, Rheumatology, Hindenburgdamm 30, 12200 Berlin, Germany. E-mail: heiner.appel{at}charite.de






