1. Palmer College of Chiropractic, Davenport, IA.
2. Department of Medicine, Division of Gastroenterology and Hepatology, Medical University of South Carolina, Charleston, SC.
3. Samueli Institute, Alexandria, VA.
4. Finch & King, Inc., Minneapolis, MN.
5. Research Triangle Institute, Research Triangle Park, NC.
6. TRICARE Management Activities, Falls Church, VA.
7. Abt Associates Inc., Cambridge, MA.