1 Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou City, Zhejiang Province, China, 310009.
2 Department of Thoracic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou City, Zhejiang Province, China, 310009. Electronic address: iwuming22@zju.edu.cn.