1. Department of General Surgery, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
2. Department of Respiratory Medicine, Third Hospital of Xi'an, Xi'an, Shaanxi 710082, P.R. China
3. Department of Cardiovascular Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
4. Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
5. Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
6. Department of Thoracic Surgery, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China