1. Department of Internal MedicineYale University School of Medicine New Haven Connecticut USA
2. Department of Clinical MedicineMagnetic Resonance Research CentreAarhus University Aarhus Denmark
3. Howard Hughes Medical InstituteYale University School of Medicine New Haven Connecticut USA
4. Veterans Affairs Medical Center West Haven Connecticut USA
5. Department of Cellular and Molecular PhysiologyYale University School of Medicine New Haven Connecticut USA