1. Institute of Pathology, University of Wuerzburg, Wuerzburg, Germany;
2. Department of Pathology, University of Barcelona, Hospital Clinic, Barcelona, Spain;
3. Biometric Research Branch, National Cancer Institute (NCI), Rockville, MD;
4. Biostatistics and Bioinformatics Unit, IDIBELL-Catalan Institute of Oncology, University of Barcelona, Barcelona, Spain;
5. British Columbia Cancer Agency, University of British Columbia, Vancouver, BC;
6. Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha;
7. Southwest Oncology Group, Oregon Health & Science University, Portland;
8. Department of Pathology, University of Arizona, Tucson;
9. Division of Pathology, Norwegian Radium Hospital, Oslo, Norway;
10. Laboratory of Pathology, NCI, Bethesda, MD;
11. Cancer Research UK, St Bartholomew's Hospital, London, United Kingdom;
12. Metabolism Branch, NCI, Bethesda, MD; and
13. Institute of Clinical Pathology, Robert-Bosch-Krankenhaus and Institute of Clinical Pharmacology, Stuttgart, Germany