[1] Fdn IRCCS Ist Neurol Carlo Besta, Neuroalgol Unit, Milan, Italy
[2] Maastricht Univ, Med Ctr, Clin Genet, Maastricht, Netherlands
[3] Maastricht Univ, Med Ctr, Dept Neurol, Maastricht, Netherlands
[4] Univ Manchester, Ctr Endocrinol & Diabet, Inst Human Dev, Manchester, Lancs, England
[5] Cent Manchester NHS Fdn Trust, Manchester Acad Hlth Sci Ctr, Manchester, Lancs, England
[6] Weill Cornell Med, Dept Med, Doha, Qatar
[7] Heinrich Heine Univ, Inst Clin Diabetol, German Diabet Ctr, Leibniz Ctr Diabet Res, Dusseldorf, Germany
[8] Heinrich Heine Univ, Fac Med, Dept Endocrinol & Diabetol, Dusseldorf, Germany
[9] St Elizabeth Hosp, Dept Neurol, Willemstad, Curacao
[10] Univ Milan, Dept Biomed & Clin Sci Luigi Sacco, Milan, Italy