Affiliation: | 1. Department of Nephrology, Teine Keijinkai Medical Center, Sapporo, Japan;2. Department of Gastroenterology, Teine Keijinkai Medical Center, Sapporo, Japan;3. Department of Pathology, Teine Keijinkai Medical Center, Sapporo, Japan;4. Hokkaido Renal Pathology Center, Sapporo, Japan |