1. Institute of Pathology; University of Bern; Bern; Switzerland
2. Division of Nuclear Medicine; University Hospital Zurich; Zurich; Switzerland
3. Institute of Surgical Pathology; University Hospital Zurich; Zurich; Switzerland
4. IPATIMUP (Institute of Molecular Pathology and Immunology of the University of Porto); Porto; Portugal
5. Institute of Surgical Pathology; Triemlispital; Zürich; Switzerland