1. Department of Thoracic Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250021, P.R. China
2. Department of Thoracic Surgery, Translational Medical Center, Weifang Second People's Hospital (Weifang Respiratory Disease Hospital), Weifang, Shandong 261041, P.R. China
3. Biopharmaceutical Laboratory, Key Laboratory of Shandong Province Colleges and Universities, School of Life Sciences and Technology, Weifang Medical University, Weifang, Shandong 261053, P.R. China