1. Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padua, Padua, Italy
2. Department of Surgical Oncology and Gastroenterological Sciences (DiSCOG), University of Padua, Padua, Italy
3. Comprehensive Cancer Center, Ohio State University, Columbus, OH
4. Istituto Oncologico Veneto - IOV-IRCCS, Padua, Italy
5. Department of Morphology and Embryology; University of Ferrara, Ferrara, Italy
6. Institute of Cancer Research, London, UK
7. Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA
8. Department of Medicine, University of Texas Southwestern Medical Center & VA North Texas Health Care System, Dallas, TX
9. ARC-NET Research Centre, University of Verona, Verona, Italy
10. Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke-University of Magdeburg, Magdeburg, Germany