1. Department of Thoracic Surgery, Suzhou Ninth People’s Hospital, Suzhou, Jiangsu, China
2. Department of Thoracic Surgery, Haimen People’s Hospital, Nantong, Jiangsu, China
3. Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
4. Department of Thoracic Surgery, Dushu Lake Hospital Affiliated to Soochow University, Suzhou, Jiangsu, China