1. Divisions of Epidemiology (L.J.M., C.L.L.), Department of Health Sciences Research
2. Division of Endocrinology, Metabolism and Nutrition (L.J.M., B.L.R., S.K.), Department of Internal Medicine
3. Biostatistics (S.J.A., E.J.A.), Department of Health Sciences Research
4. Biomedical Imaging Resource (J.J.C., R.A.R.), College of Medicine, Mayo Clinic, Rochester, Minnesota 55905
5. Orthopedic Biomechanics Laboratory (M.L.B.), Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215