Different responses to treatment across classified diseases and severities in Japanese patients with microscopic polyangiitis and granulomatosis with polyangiitis: a nationwide prospective inception cohort study

Ken-ei Sada; Yamamura, Masahiro; Harigai, Masayoshi; Fujii, Takao; Takasaki, Yoshinari; Amano, Koichi; Fujimoto, Shouichi; Muso, Eri; Murakawa, Yohko; Arimura, Yoshihiro; Makino, Hirofumi