[1] Manchester Royal Infirm, Dept Med, Manchester M13 9WL, Lancs, England
[2] Univ Miami, Sch Med, Div Endocrinol Diabet & Metab, Miami, FL 33152 USA
[3] Eastern Virginia Med Sch, Strelitz Diabet Inst, Norfolk, VA 23501 USA
[4] Yeshiva Univ, Albert Einstein Coll Med, Dept Neurosci, Bronx, NY USA
[5] Univ Toronto, Dept Med Neurol, Univ Hlth Network, Toronto, ON, Canada
[6] Univ Michigan, Dept Neurol, Ann Arbor, MI 48109 USA
[7] Harvard Univ, Dept Neurol, Boston, MA 02115 USA
[8] Univ Delaware, Dept Med Technol, Newark, DE USA
[9] Univ Dusseldorf, German Diabet Clin, German Diabet Ctr, Leibniz Inst, D-4000 Dusseldorf, Germany