| Year | Position | Institution |
| 1971 | Professor Of Biochemistry | Brandeis University 8 |
| 1989 | Johns Hopkins University | |
| 1990 | Johns Hopkins University | |
| 1990 | Wayne State University 4 | |
| 1991 | Johns Hopkins University | |
| 1992 | Johns Hopkins University | |
| 1993 | Johns Hopkins University | |
| 1994 | Johns Hopkins University | |
| 1995 | Johns Hopkins University | |
| 1996 | Johns Hopkins University | |
| 1997 | Johns Hopkins University | |
| 1998 | Johns Hopkins University | |
| 1999 | Johns Hopkins University 5 | |
| 2000 | Johns Hopkins University |
| Year | Role | Course |
| 1971 | Instructor | Physiology 1971 |
| 1990 | Student | Molecular Evolution 1990 |
| 1999 | Faculty | Molecular Biology Of Aging 1999 |
| Year | Subject | Role |
| 1971 | Independent |
| Year | Start Date | End Date | Subject | Role |
| 1989 | - | - | Corporation Member | |
| 1990 | - | - | Corporation Member | |
| 1991 | - | - | Corporation Member | |
| 1992 | - | - | Corporation Member | |
| 1993 | - | - | Corporation Member | |
| 1994 | - | - | Corporation Member | |
| 1995 | - | - | Corporation Member | |
| 1996 | - | - | Corporation Member | |
| 1997 | - | - | Corporation Member | |
| 1998 | - | - | Corporation Member | |
| 1999 | - | - | Corporation Member | |
| 2000 | - | - | Corporation Member |