1. Engineering Research Center of EMR and Intelligent Expert System; Ministry of Education; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases; College of Biomedical Engineering and Instrument Science; Zhejiang University; No. 38 Zheda Road Hangzhou Zhejiang 310027 China
2. Department of Surgical Oncology; Second Affiliated Hospital; Zhejiang University School of Medicine; No. 88 Jiefang Road Hangzhou 310009 Zhejiang Province China
3. Department of Surgery; Aintree University Hospital; Liverpool L9 7AL United Kingdom