| Year | Position | Institution |
| 1987 | University Of Maryland School Of Medicine 4 | |
| 1988 | University Of Maryland School Of Medicine 4 | |
| 1989 | University Of Maryland School Of Medicine 4 | |
| 1990 | University Of Maryland School Of Medicine 4 |
| Year | Subject | Role |
| 1987 | Independent | |
| 1988 | Principal Investigators | |
| 1989 | Independent | |
| 1990 | Principal Investigators |