1981-1983
Instructor in Biological Chemistry and Applied Biochemistry, University of Perugia, Faculty of
Pharmacy and School of Mathematical, Physical and Natural Sciences.

1984-1986
Research Associate in Biological Chemistry, Harvard Medical School.

1986-1988
Research Associate in Surgery, Harvard Medical School.

1988-1990
Instructor in Psychiatry (Biochemistry), Harvard Medical School.

1990-1992
Assistant Professor of Psychiatry (Biochemistry), Harvard Medical School.

1993-1995
Clinical Associate in Psychiatry, Cornell University Medical College.

1995-1996
Senior Clinical Associate in Psychiatry, Cornell University Medical College.

1996-1998
Clinical Instructor in Psychiatry, Cornell University Medical College.

1996-1999
Guest Investigator, Rockefeller University.

1998
Clinical Associate in Psychiatry. Cornell University
Medical College.

2000
Lecturer in Psychiatry. Columbia
College of Physicians and Surgeons, Columbia University.

2000
Faculty. Columbia Center for Psychoanalytic Training and Research. Columbia University.