1. Professor of Economics, Department of Economics; University of California; Merced, CA 95343
2. Professor Emeritus of Surgery, Section of Transplantation, University of Michigan, Arbor Research Collaborative for Health; Ann Arbor MI 48103
3. Professor of Surgery, Department of Surgery; Emory University Medical School; Atlanta GA 30122
4. Professor, Department of Health Policy and Management; Emory University; Atlanta GA 30322