1. Department of Pulmonary Medicine; Shengli Oilfield Central Hospital; Dongying Shandong Province China
2. Department of Oncology; Shengli Oilfield Central Hospital; Dongying Shandong Province China
3. Department of Pathology; Zhongshan Hospital, Fudan University; Shanghai China
4. Department of Pulmonary Medicine; Research Institute of Respiratory Disease, Zhongshan Hospital, Fudan University; Shanghai China