1. Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
2. Division of Bioscience Center, Radioisotope, Akita University, Akita, Japan
3. Research Center for Biosignal, Akita University, Akita, Japan
4. Department of Otolaryngology, Noshiro Kousei Medical Center, Noshiro, Japan
5. Department of Hematology, Hiraka General Hospital, Yokote, Japan
6. Department of Dermatology, University of Tokyo, Tokyo, Japan