1. University of Texas Medical Branch, Galveston
2. Albert Einstein College of Medicine, Bronx, New York
3. Christian Medical College, Vellore, India
4. Dayanand Medical College, Ludhiana, India
5. Columbia University, New York, New York
6. Instituto Nacional de Ciencias Neurologicas and Universidad Peruana Cayetano Heredia, Lima, Peru
7. National Institutes of Health, Bethesda, Maryland