1. Department of Hematology, The Second People's Hospital of Taizhou, Medical College of Yangzhou University, Jiangyan, Taizhou, Jiangsu 225500, P.R. China
2. Department of Gastroenterology, The Second People's Hospital of Taizhou, Medical College of Yangzhou University, Jiangyan, Taizhou, Jiangsu 225500, P.R. China