1. Department of Pathology; Shandong University School of Medicine; Jinan Shandong China
2. Department of Pathology; Shandong University Qilu Hospital; Jinan Shandong China
3. Department of Pathology, Nara Hospital; Kinki University Faculty of Medicine; Ikoma Nara Japan
4. Department of Pathology; The second Hospital of Shandong University; Jinan Shandong China