1. Department of Oncology, The Fifth People's Hospital of Changshu, Changshu, People's Republic of China.
2. Department of Gastroenterology, Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, People's Republic of China.
3. Department of Interventional Oncology, Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, People's Republic of China.