1. Department of Biomedical Research, Urology Group; University of Bern; Bern Switzerland
2. Department of Gastroenterology and Hepatology; Leiden University Medical Center; Leiden The Netherlands
3. Clayton Foundation Laboratories for Peptide Biology; The Salk Institute for Biological Studies; La Jolla, California USA
4. Institute of Biology, Department of Molecular Cell Biology; Leiden University; Leiden The Netherlands
5. Department of Radiology; Leiden University Medical Centre; Leiden The Netherlands
6. Department of Pathology; Leiden University Medical Centre; Leiden The Netherlands
7. Department of Biomedical Research, Visceral Surgery and Medicine; University of Bern, Bern University Hospital; Switzerland
8. Molecular Pathology Division, Institute of Pathology; University Hospital Basel; Switzerland
9. Department of Surgery; Leiden University Medical Center; Leiden The Netherlands
10. Department of Oncology; Leiden University Medical Center; Leiden The Netherlands
11. Department of Urology; Bern University Hospital; Switzerland