1. Department of Emergency, Institute of Emergency Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410000, P.R. China
2. Department of Breast and Thyroid Surgery, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410000, P.R. China
3. Department of Pathology, The Fourth Hospital of Changsha, The Affiliated Changsha Hospital of Hunan Normal University, Changsha, Hunan 410000, P.R. China