| Year | Position | Institution |
| 1982 | Harvard Medical School | |
| 1983 | Harvard Medical School | |
| 1984 | Harvard Medical School | |
| 1985 | Case Western Reserve Medical School | |
| 1986 | Case Western Reserve Medical School | |
| 1987 | Case Western Reserve Medical School | |
| 1988 | Case Western Reserve Medical School | |
| 1989 | Case Western Reserve Medical School | |
| 1995 | NIH/NINDS | |
| 1996 | NIH/NINDS | |
| 1997 | NIH/NINDS | |
| 1998 | National Institutes Of Health | |
| 1999 | National Institutes Of Health | |
| 2000 | National Institutes Of Health |
| Year | Start Date | End Date | Subject | Role |
| 1982 | - | - | Corporation Member | |
| 1983 | - | - | Corporation Member | |
| 1984 | - | - | Corporation Member | |
| 1985 | - | - | Corporation Member | |
| 1986 | - | - | Corporation Member | |
| 1987 | - | - | Corporation Member | |
| 1988 | - | - | Corporation Member | |
| 1989 | - | - | Corporation Member | |
| 1995 | - | - | Corporation Member | |
| 1996 | - | - | Corporation Member | |
| 1997 | - | - | Corporation Member | |
| 1998 | - | - | Corporation Member | |
| 1999 | - | - | Corporation Member | |
| 2000 | - | - | Corporation Member |