Kallenberg Cees Gm, Bijl Marc
Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands.
Nat Clin Pract Nephrol. 2008 Feb;4(2):60-1. doi: 10.1038/ncpneph0696. Epub 2007 Dec 4.