1. Department of Neurology Yale School of Medicine New Haven Connecticut USA
2. Neurology Service Veterans Affairs Connecticut Healthcare System West Haven Connecticut USA
3. Headache Center of Excellence Veterans Affairs Connecticut Healthcare System West Haven Connecticut USA
4. Department of Psychiatry Yale School of Medicine New Haven Connecticut USA
5. Psychiatry Service Veterans Affairs Connecticut Healthcare System West Haven Connecticut USA
6. Neuropharmacology Laboratory University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
7. Alexander Shulgin Research Institute Lafayette California USA