1. Department of Epidemiology, College of Medicine and College of Public Health and Health Professions, University of Florida, Gainesville, Florida, USA
2. Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
3. University of Florida Health Cancer Center, Gainesville, Florida, USA
4. Peritoneal Malignancy Institute, Basingstoke and North Hampshire Hospital, Basingstoke, UK
5. Stony Brook Cancer Center, Stony Brook University, Stony Brook, New York, USA
6. Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
7. Department of Gastrointestinal Oncology, Moffitt Cancer Center, Tampa, Florida, USA
8. Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Division of Gastroenterology and Hepatology, National University Hospital, Singapore
9. Division of Gastroenterology, Department of Medicine, University of California at San Diego, La Jolla, California
10. Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
11. Department of Computer Science and Engineering, University of Nevada, Reno, Nevada
12. Departments of Gastrointestinal Oncology and Cancer Epidemiology, Moffitt Cancer Center, Tampa, Florida and
13. Hillman Cancer Center, University of Pittsburgh Medical Center and Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Philadelphia, USA