1. Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226600, P.R. China
2. Department of Internal Medicine, Nantong Tumor Hospital, Nantong, Jiangsu 226600, P.R. China
3. Department of Radiotherapy, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226600, P.R. China
4. Department of Respiration, Affiliated Hai'an Hospital of Nantong University, Nantong, Jiangsu 226600, P.R. China
5. Department of Respiration, Nantong Geriatric Rehabilitation Hospital, Branch of the Affiliated Hospital of Nantong University, Nantong, Jiangsu 226600, P.R. China
6. Medical School of Nantong University, Nantong, Jiangsu 226600, P.R. China
7. Department of Cardio‑Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226600, P.R. China