1. Institute of Cancer Prevention and Treatment, Harbin Medical University, Harbin City, People's Republic of China
2. Key Laboratory of Cardiovascular Disease Acousto-Optic Electromagnetic Diagnosis and Treatment in Heilongjiang Province, The First Affiliated Hospital, Harbin Medical University, Harbin City, People's Republic of China
3. Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin City, People's Republic of China
4. Department of Pathology, Harbin Medical University Cancer Hospital, Harbin City, People's Republic of China
5. Colorectal Surgery, Harbin Medical University Cancer Hospital, Harbin City, People's Republic of China
6. Department of Radiology, Chengdu Second People's Hospital, Chengdu City, People's Republic of China
7. Pelvic Floor Disease Center, Department of General Surgery, West China Hospital, Sichuan University, Chengdu City, People's Republic of China