1. Weight Control and Diabetes Research Center, The Miriam Hospital/Brown Alpert Medical School; Providence Rhode Island USA
2. Montefiore Headache Center, Albert Einstein College of Medicine; Bronx, New York New York USA
3. Department of Neurology; Rhode Island Hospital/Brown Alpert Medical School; Providence Rhode Island USA
4. Department of Psychiatry and Human Behavior; The Miriam Hospital/Brown Alpert Medical School; Providence Rhode Island USA.