Affiliation: | 1.Department of Lung Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin''s Clinical Research Center for Cancer, Tianjin 300060, P.R. China;2.Department of Thoracic Surgery, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China;3.Department of Teaching and Research, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China |