1. Department of Biostatistics; University of Michigan; MI U.S.A.
2. Committee on National Statistics; National Academy of Sciences; Washington DC U.S.A.
3. Department of Epidemiology; Johns Hopkins University; MD U.S.A.
4. Department of Biostatistics; University of Washington; Seattle WA U.S.A.
5. Department of Biostatistics and Epidemiology; University of Pennsylvania School of Medicine; PA U.S.A.
6. School of Public Health; University of Minnesota; MN U.S.A.
7. Department of Biostatistics; University of Medicine and Dentistry of New Jersey School of Public Health; NJ U.S.A.
8. Johnson & Johnson; Radnor PA U.S.A.
9. Department of Statistics; University of California; Irvine CA U.S.A.