1. University of North Dakota, Fargo, ND, U.S.A
2. OPUS 12 Foundation Review Group, Plymouth Meeting, PA, U.S.A.
3. University of Arizona, Tucson, AZ, U.S.A
4. Temple St Luke's Medical School, Bethlehem, PA, U.S.A
5. The Ohio State University Medical Center, Columbus, OH, U.S.A
6. Cooper University Hospital, Camden, NJ, U.S.A
7. Vanderbilt University Medical Center, Nashville, TN, U.S.A