1. Department of Nephropathology; Institute of Pathology; Universitätsklinikum Erlangen; Friedrich-Alexander-University Erlangen-Nürnberg; Erlangen Germany
2. Institute of Pathology; University Medical Centre Mannheim; University of Heidelberg; Mannheim Germany
3. Institute of Pathology; Universitätsklinikum Erlangen; Friedrich-Alexander-University Erlangen-Nürnberg; Erlangen Germany
4. Institute of Pathology; University Medicine Göttingen; Göttingen Germany