· President, Bethesda Research Consulting (Current)2014–
· Program Director, NCCAM/NIH2008–2014
· Senior Research Advisor, PGRD2001–2005
· Research Pharmacologist, NIMH1983–2005
· Professor, Harvard Medical School, Boston, MA, USA1979–1983
· Doctor of Philosophy (Ph.D.), Behavioral Pharmacology, University of Maryland College Park1966–1979
· Doctor of Philosophy (Ph.D.), University of Maryland College Park