1. Department of Oncology and Pathology; Karolinska Institutet, Karolinska University Hospital; Stockholm Sweden
2. Leeds Institute of Cancer and Pathology, University of Leeds; Leeds United Kingdom
3. Department of General Medical Oncology; University Hospitals Leuven; Leuven Belgium
4. Department of Oncology; Sahlgrenska University Hospital; Gothenburg Sweden
5. Department of Oncology; Ryhov County Hospital; Jonkoping Sweden