1. Yokoyama H, Taguchi T, Sugiyama H, Sato H, on behalf of the Committee for the Standardization of Renal Pathology Diagnosis and for Renal Biopsy and Disease Registry in the Japanese Society of Nephrology (2012) Membranous nephropathy in Japan: analysis of the Japan Renal Biopsy Registry (J-RBR). Clin Exp Nephrol 16:557–563
2. Yokoyama H, Sugiyama H, Sato H et al (2012) Renal disease in the elderly and the very elderly Japanese: analysis of the Japan Renal Biopsy Registry (J-RBR). Clin Exp Nephrol 16:903–920
3. Matsuo S, Imai E, Saito T, Taguchi T, Yokoyama H, Narita I et al (2011) Guidelines for the treatment of nephrotic syndrome. Jpn J Nephrol 53(2):78–122 (article in Japanese)
4. Ito T, Mochizuki K, Fukunaga N, Nakanishi N, Hanada M, Hanada K (2012) Study of mizoribine therapy for elderly nephropathy patients. J New Rem Clin 61(3):480–485 (article in Japanese)
5. Koshikawa S, Satoh M, Narita M, Sakai O, Nakajima M (1993) Clinical evaluation of an immunosuppressive drug, mizoribine (HE-69) on steroid-resistant nephrotic syndrome—a multicenter double-blind comparison study with placebo. Kidney Dial 4:631–650 (article in Japanese)