1. Department of Medicine; Duke University School of Medicine and Duke Cancer Institute, Duke University Medical Center; Durham North Carolina
2. Department of Gastrointestinal Surgery; Union Hospital, Tongji Medical College, Huazhong University of Science and Technology; Wuhan China
3. Department of Epidemiology, School of Public Health; Medical College of Soochow University; Suzhou China
4. Department of Epidemiology, Fairbanks School of Public Health; Indiana University, and Indiana University Melvin and Bren Simon Cancer Center; Indianapolis Indiana
5. Community and Family Medicine, Geisel School of Medicine; Dartmouth College; Hanover New Hampshire
6. Department of Surgical Oncology; The University of Texas M. D. Anderson Cancer Center; Houston Texas
7. Department of Biostatistics; University of Michigan; Ann Arbor Michigan
8. Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital; Boston Massachusetts