Stegeman C A, Kallenberg C G
Department of Internal Medicine/Division of Nephrology, University Hospital Groningen, Faculty of Medical Sciences, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
Springer Semin Immunopathol. 2001;23(3):231-51. doi: 10.1007/s002810100079.