1. Department of Epidemiology School of Public Health Harbin Medical University Harbin China
2. Department of Breast Surgery Tumor Hospital of Harbin Medical University Harbin Medical University Harbin China
3. Department of Chest Surgery Tumor Hospital of Harbin Medical University Harbin Medical University Harbin China
4. Department of Gastroenterology The Second Affiliated Hospital of Harbin Medical University Harbin Medical University Harbin China
5. Department of Colorectal Surgery Tumor Hospital of Harbin Medical University Harbin Medical University Harbin China
6. NHC Key Laboratory of Etiology and Epidemiology Harbin Medical University Harbin China