1. Department of Nephrology, Toyama City Hospital
2. Department of Hematology, Toyama City Hospital
3. The Japanese Collaborative Research Group (JCRG) on Autoimmune Acquired Coagulation Factor Deficiencies supported by the Japanese Ministry of Health, Labour and Welfare (MHLW)
4. Department of Hematology, Iwate Prefectural Chubu Hospital