Intermittent granulocyte and monocyte apheresis versus mercaptopurine for maintaining remission of ulcerative colitis: a pilot study.
Sakuraba A, Sato T, Morohoshi Y, Matsuoka K, Okamoto S, Inoue N, Takaishi H, Ogata H, Iwao Y, Hibi T. Intermittent granulocyte and monocyte apheresis versus mercaptopurine for maintaining remission of ulcerative colitis: a pilot study. Ther Apher Dial. 2012 Jun; 16(3):213-8.