1. Department of Internal Medicine; Kyushu University Beppu Hospital; Beppu Oita Japan
2. Department of Dermatology; Graduate School of Biomedical and Health Sciences; Hiroshima University; Hiroshima Japan
3. Department of Hematology; Kyoto University Hospital; Kyoto Japan
4. Department of Nephrology; Saiyu Soka Hospital; Soka Saitama Japan