1. Imaging Sciences Training Program; The National Institute of Biomedical Imaging and Bioengineering, The National Institutes of Health; Bethesda Maryland USA
2. Biomedical and Metabolic Imaging Branch, The National Institute of Diabetes and Digestive and Kidney Diseases; The National Institutes of Health; Bethesda Maryland USA
3. Russell H. Morgan Department of Radiology and Radiological Sciences, Division of MR Research; Johns Hopkins University School of Medicine; Baltimore Maryland USA
4. Critical Care Medicine Department, Clinical Research Center; The National Institutes of Health; Bethesda Maryland USA
5. Liver Diseases Branch, The National Institute of Diabetes and Digestive and Kidney Diseases; The National Institutes of Health; Bethesda Maryland USA