Affiliation: | 1. Department of Thoracic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China;2. Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China;3. Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China;4. Department of Oncology, Shanghai Pulmonary Hospital Affiliated to Tongji University, Shanghai, China |