1. Department of Clinical Laboratory, China Meitan General Hospital, Beijing, PR China
2. Department of Oncology, Tangshan People's Hospital & Tangshan Cancer Hospital, North China University of Science and Technology, Tangshan, PR China
3. Department of Clinical Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China
4. Department of Oncology, China Meitan General Hospital, Beijing, PR China
5. Department of Pathology, Beijing Chest Hospital, Capital Medical University & Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, PR China