1. Department of Pathology, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, China
2. Laboratory of Pathology, Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
3. Laboratory of Clinicopathological Therapeutics, Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshinkai, Kure, Hiroshima 737-0112, Japan