LLEWELLYN JOSEPH CORNELIUS, PHD, is Professor of Social Work, University of Maryland at Baltimore, School of Social Work. He is also Associate Director of the Institute for Human Services Policy. He has been a visiting scholar at the University of Ghana-Legon, School of Public Health, Department of Sociology and the University of Texas Health Science Center at Houston, School of Public Health. He also has been a fellow in the U.S. Department of Health and Human Services, Agency for Health Care Policy and Research.