1. The Second Clinical Department, Medical School of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
2. Department of Pathology, Changzhou Cancer Hospital, Soochow University, Changzhou, Jiangsu 213032, P.R. China
3. Department of Laboratory Medicine, Suzhou Science and Technology Town Hospital, Gusu School, Nanjing Medical University, Suzhou, Jiangsu 215153, P.R. China