1. Department of Neurological Sciences Larner College of Medicine at University of Vermont Burlington Vermont USA
2. Neurosciences Institute, Manati Medical Center Ponce Health Sciences University Ponce Puerto Rico
3. Celiac Disease Center Columbia University New York City New York USA
4. Division of Laryngology, Department of Head & Neck Surgery Columbia University New York City New York USA
5. NewYork Brain Bank, Department of Pathology Columbia University New York City New York USA
6. Division of Movement Disorders, Department of Neurology Columbia University New York City New York USA