[1] Brown Univ, Miriam Hosp, Alpert Med Sch, Weight Control & Diabet Res Ctr, 196 Richmond St, Providence, RI 02903 USA
[2] Montefiore Headache Ctr, Montefiore Med Ctr, Albert Einstein Coll Med, Bronx, NY USA
[3] Univ Utah, Hlth Sci Ctr, Salt Lake City, UT USA
[4] Brown Univ, Rhode Isl Hosp, Dept Neurol, Alpert Med Sch, Providence, RI 02903 USA
[5] Brown Univ, Dept Psychiat & Human Behav, Miriam Hosp, Alpert Med Sch, Providence, RI 02912 USA