Doctor of Medicine cum laude, Buenos Aires U., 1971.
Rotating intern, Hadassah U. Hospital, Hebrew U., Jerusalem, 1971-1972;
resident in psychiatry, Hadassah U. Hospital, Hebrew U., Jerusalem, 1972-1977;
research fellow, Jerusalem Mental Health Center, Hebrew U., Jerusalem, 1975-1976;
clinical fellow in child psychiatry, Children's Hospital Medical Center, Judge Baker Guidance Center, 1977-1979;
clinical fellow in child psychiatry, Developmental Evaluation Clinic, Harvard Medical School, Boston, 1977-1979;
clinical fellow in psychiatry, Massachusetts General Hospital, Harvard Medical School, 1979-1981;
instructor in psychiatry, Hadassah Medical school and Hebrew University, 1976-1979;
instructor, to assistant professor, to associate professor, Harvard Medical School, since 1981;
chief pediatric psychopharmacology consolidated department psychiatry, Harvard Medical School, 1992;
psychiatrist II (child psychiatrist), Department of Mental Health, 1979-1981;
clinical assistant department psychiatry, Massachusetts General Hospital, 1981-1983;
assistant in psychiatry, Massachusetts General Hospital, 1984-1986;
assistant psychiatrist, Massachusetts General Hospital, 1987-1989;
associate psychiatrist, Massachusetts General Hospital, 1989-1991;
psychiatrist, Massachusetts General Hospital, since 1991;
director pediatric psychopharmacology unit child psychiatry service, Massachusetts General Hospital, since 1981. Member research committee department psychiatry Massachusetts General Hospital, since 1981, chairman Research.com., 1984-1987, grand rounds committee, since 1986, steering committee, since 1989. Visiting professor Department Psychiatry, Cleveland Clinic Foundation, 1984, U. Manitoba, Canada, 1990, University of Minnesota, 1991.
Visiting scholar department psychiatry College of Medicine, U. Vermont, 1987, Pfizer visiting professor department psychiatry Health Science Center, University Texas, Dallas, 1988. Consultant in child psychiatry Pan American Health Organisation, World Health Organization, since 1987. Consultant Ontario Mental Health Foundation, since 1988.
Co-leader Seminary for Control American and Panama, 1989. Professional advisory board Attention Deficity Information Network, Inc., since 1993, consultant American Medical Association Drug Evaluations, since 1991, McLean Hospital, since 1993.
Fellow American Academy Child Psychiatry (chair work group on research 1993-1994,chairman research committee 1990), American Psychiatric Association (Blanche Ittleson award for research in child psychiatry 1993). Member Massachusetts Psychiatric Association, American Academy Child and Adolescent Psychiatry (Charlotte and Norbert Rieger award for science achievement 1993), Society Biological Psychiatry, Society Research inChild and Adolescent Psychopathology.