1. Department of Hepatobiliary and Pancreatic Surgery, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, China (mainland)
2. Cancer Research Center Nantong, Affiliated Tumor Hospital of Nantong University, Nantong, Jiangsu, China (mainland)
3. Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China (mainland)
4. Department of Pathology, Nantong Fourth People’s Hospital, Nantong, Jiangsu, China (mainland)