The Center for International Blood and Marrrow Transplant Rerearch was formed in the summer of 2004 by a merger of the research efforts of the National Marrow Donor Program in Minneapolis and the International Blood and Marrow Transplant Registry (IBMTR) at the Medical College.  The new organization will continue the IBMTR’s program of retrospective investigation into hematopietic stem cell transplantation.   Professor Klein is the Statistical Director of the organization and Professors Logan, Tarima and Zhang are statisticians for the group.