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Volume 122, Issue 2 , Pages 132-134 , February 2009

Beneath the Surface

H.A. Martens, MD
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, The Netherlands
- Requests for reprints should be addressed to Henk A. Martens, MD, Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, PO Box 30 0001, 9700 RB Groningen, The Netherlands
J.J. Koornstra, MD, PhD
- Department of Gastroenterology and Hepathology, University Medical Center Groningen, University of Groningen, The Netherlands
A. Diepstra, MD, PhD
- Department of Pathology, University Medical Center Groningen, University of Groningen, The Netherlands
H.G. Sprenger, MD, PhD
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, The Netherlands
C.G.M. Kallenberg, MD, PhD
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, The Netherlands