1. A phase‐II sequential case‐series study of all patients presenting to four plasma exchange centres with presumed relapsed/refractory thrombotic thrombocytopenic purpura treated with rituximab. (8th April 2015) Authors: Clark, William F.; Rock, Gail; Barth, David; Arnold, Donald M.; Webert, Kathyrn E.; Yenson, Paul R.; Kelton, John G.; Li, Lihua; Foley, Steven R.; members of the Canadian Apheresis Group Journal: British journal of haematology Issue: Volume 170:Number 2(2015:Jul.) Page Start: 208 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗