1 Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, People's Republic of China.
2 Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China.
3 Department of General Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, 68 Pohu Middle Road, Changzhou, 213000, Jiangsu, People's Republic of China.
4 Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, People's Republic of China.
5 Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, 30332, USA.
6 Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, People's Republic of China. yx_lao@126.com.
7 Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China. qinxihu@yeah.net.
8 Department of General Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, 68 Pohu Middle Road, Changzhou, 213000, Jiangsu, People's Republic of China. qinxihu@yeah.net.
9 Department of Gastrointestinal Surgery, General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, People's Republic of China. wenbin_yu2003@163.com.