1. Blood Sample Collection, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
2. Department of Urology, Heilongjiang Provincial Hospital, Harbin Institute of Technology, Harbin, China
3. Department of CT, Heilongjiang Provincial Hospital, Harbin Institute of Technology, Harbin, China
4. Department of Plastic Surgery, Heilongjiang Provincial Hospital, Harbin Institute of Technology, Harbin, China
5. Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
6. Bio-Bank of Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China