Affiliation: | 1. University of Tsukuba Mito Medical Center, Tsukuba, Japan;2. Niigata University Faculty of Medicine, Niigata, Japan;3. Jiyugaoka Medical Clinic, Hokkaido, Japan;4. Kyoto University Hospital, Kyoto, Japan;5. University of Tsukuba, Tsukuba, Japan;6. Kusatsu General Hospital, Shiga, Japan;7. Kawai Clinic, Ibaraki, Japan |