1. National Institute of Diabetes and Digestive and Kidney Disease (J.-M.G., M.C.S., C.C., P.G.), National Institutes of Health, Bethesda, Maryland, 20892
2. Radiology Department (A.K., R.C.), Warren Grant Magnusson Clinical Center, National Institutes of Health, Bethesda, Maryland 20892
3. Department of Radiology (A.K.), Johns Hopkins Bayview Medical Center, Baltimore, Maryland 21224
4. Surgical Metabolism Section (H.R.A., S.K.L., J.F.P.), Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 20892
5. Department of Surgery (H.R.A.), University of Maryland Medical Center, Baltimore, Maryland 21201