| Year | Position | Institution |
| 1969 | Director Of Intramural Research | National Institutes Of Health 4 |
| 1970 | Director Of Intramural Research | National Institute Of Neurological Diseases And Stroke 4 |
| Year | Subject | Role |
| 1969 | Independent | |
| 1970 | Independent | |
| 1971 | Independent |
| Year | Location |
| 1971 | national institute of neurological diseases and stroke |