1. Research Unit Analytical Pathology Helmholtz Zentrum München – German Research Center for Environmental Health Neuherberg 85764 Germany
2. Institute of Pathology University of Bern Bern 3008 Switzerland
3. Graduate School for Health Sciences University of Bern Mittelstrasse 43 Bern 3012 Switzerland
4. Center for Excellence in Molecular Cell Science Chinese Academy of Sciences Shanghai 200031 P. R. China
5. Department of Laboratory Medicine and Pathology Institute of Pathology Lausanne University Hospital and University of Lausanne Lausanne 1011 Switzerland