2003 – 06 Chairman, ad interim, Dept. of Pathology and Lab Medicine, BUSM 1996 – Chief of Anatomic Pathology, Boston Medical Center 1994 – Professor of Public Health (Epidemiology and Biostatistics), BUSPH 1991 – 03 Vice-chairman for Anatomic Pathology, Department of Pathology and Laboratory Medicine, BUSM 1988 – Professor of Pathology and Laboratory Medicine, BUSM 1986-87 Lecturer on Pathology, University College, Dublin, Ireland 1982-86 Associate Professor of Pathology, BUSM 1980- Faculty Member, Division of Graduate Medical & Dental Sciences, BUSM 1980-84 Lecturer on Medicine, Harvard Medical School, Boston, MA 1978-82 Assistant Professor of Pathology, BUSM 1976-78 Teaching Fellow, BUSM