Arthur H. Elkind, MD, Mount Vernon, New York, United States
Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
Atlanta Center for Medical Research, Atlanta, Georgia, United States
Covance Clinical Research Unit Inc., Evansville, Indiana, United States
Medvadis, Wellesley Hills, Massachusetts, United States
SUNY Downstate Medical Center, Brooklyn, New York, United States
New York State Psychiatric Institute, New York, New York, United States
Mt. Sinai School Of Medicine, New York, New York, United States
Covance Clinical Research Unit Inc., d/b/a Covance GFI Research, Evansville, Indiana, United States
Palm Beach Neurological Center, West Palm Beach, Florida, United States
The New England Center for Headache, Stamford, Connecticut, United States
Department of Neurology, Mayo Clinic, Scottsdale, Arizona, United States
Duke University, Durham, North Carolina, United States