Degree of foot process effacement in patients with genetic focal segmental glomerulosclerosis: a single-center analysis and review of the literature oleh Kiyonobu Ishizuka, Kenichiro Miura, Taeko Hashimoto, Naoto Kaneko, Yutaka Harita, Tomoo Yabuuchi, Masataka Hisano, Shuichiro Fujinaga, Tae Omori, Yutaka Yamaguchi, Motoshi Hattori