1. Charles H. Best Diabetes Centre (I.B.), Whitby, Ontario, Canada L1M 1Z5
2. Helen Schneider Hospital for Women (E.H., Y.Y.), Petach Tikva 49100, Israel
3. Royal Victoria Hospital (D.R.H.), Belfast BT12 6BA, Northern Ireland, United Kingdom
4. Sansum Diabetes Research Institute (L.J.), Santa Barbara, California 93105
5. University of Southern California (J. H. M.), Los Angeles, California 90089
6. Knowledge and Evaluation Research Unit, Mayo Clinic (M. H. M.), Rochester, Minnesota 55905