1. Department of Thoracic Surgery, Sanmen Chinese Medicine Hospital, Taizhou City, Zhejiang Province, China.
2. Department of Cardio-Thoracic Surgery, Sanmen People's Hospital, Taizhou City, Zhejiang Province, China.
3. Department of Thoracic Surgery, The First People's Hospital of Wenling, Wenling City, Zhejiang Province, China.