Efficacy of granulocytapheresis and leukocytapheresis for the treatment of microscopic polyangiitis

Midori Hasegawa, Nahoko Kawamura, Masamitsu Murase, Shigehisa Koide, Hiroko Kushimoto, Kazutaka Murakami, Makoto Tomita, Yoshiyuki Hiki, Masahiko Shikano, Satoshi Sugiyama