1. Medicine Branch, NCI, National Institutes of Health, Bethesda, Maryland 20892
2. Laboratory of Metabolism and Molecular Biology, NIAAA, Alcohol, Drug Abuse and Mental Health Administration, Rockville, Maryland 20852
3. Neuroimaging Section, NINDS, National Institutes of Health, Bethesda, Maryland 20892
4. Laboratory of Cardiac Bioenergetics, NHLBI, National Institutes of Health, Bethesda, Maryland 20892
5. Biomedical Engineering and Instrumentation Branch, DRS, National Institutes of Health, Bethesda, Maryland 20892