1. Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland
2. Streltiz Diabetes Institute, Eastern Virginia Medical School, Norfolk, Virginia
3. Department of Neurology, University of Michigan, Ann Arbor, Michigan
4. Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
5. Department of Medicine, University of Manchester, Manchester, U.K.
6. Department of Medicine, University of Miami, Miami, Florida