Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (C.H.J., J.A.B., J.C., K.W.K., F.J.G.); Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland (D.W.K., H.L.); and Hepatology Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland (J.R.I.)

Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (C.H.J., J.A.B., J.C., K.W.K., F.J.G.); Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland (D.W.K., H.L.); and Hepatology Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland (J.R.I.)

Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (C.H.J., J.A.B., J.C., K.W.K., F.J.G.); Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland (D.W.K., H.L.); and Hepatology Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland (J.R.I.)

Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (C.H.J., J.A.B., J.C., K.W.K., F.J.G.); Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland (D.W.K., H.L.); and Hepatology Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland (J.R.I.)

Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (C.H.J., J.A.B., J.C., K.W.K., F.J.G.); Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland (D.W.K., H.L.); and Hepatology Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland (J.R.I.)

Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (C.H.J., J.A.B., J.C., K.W.K., F.J.G.); Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland (D.W.K., H.L.); and Hepatology Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland (J.R.I.)

Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (C.H.J., J.A.B., J.C., K.W.K., F.J.G.); Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland (D.W.K., H.L.); and Hepatology Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland (J.R.I.)

Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland (C.H.J., J.A.B., J.C., K.W.K., F.J.G.); Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland (D.W.K., H.L.); and Hepatology Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland (J.R.I.)