CTSI Co-director, Karl Kieburtz, M.D., M.P.H., is stepping down from that role and from his role as Senior Associate Dean of Clinical Research. The CTSI will continue to be led by current co-directors Martin Zand M.D., Ph.D. and Nana Bennett M.D. Jill Halterman, M.D., M.P.H., an accomplished physician and scientist, whose research has helped guide asthma medication delivery methods in Rochester and elsewhere, will take over as Senior Associate Dean of Clinical Research.