1998 -            Assistant professor at Utrecht University, Dept Biochemistry and Cell Biology

1991-1998    Postdoctoral fellow  at the Erasmus University Rotterdam, Dept. Biochemistry.

1990-1991    Postdoctoral fellow at the University of Texas Southwestern Medical School at Dallas, TX, U.S.A, Dept. Pharmacology and Howard Hughes Medical Institute.

1987-1990    Postdoctoral fellow at the Erasmus University Rotterdam, Dept. Biochemistry I.

1985             Visiting scientist at Columbia University, New York, NY, USA, Dept.Medicine and Physiology

1987             Ph. D. Title thesis: Ion transport regulation in intestinal brush border membranes.

1983-1987   Graduate student  at the Erasmus University Rotterdam  Dept. Biochemistry I

1983            Master of Science in Chemistry at Utrecht university, Major in Biochemistry

1977            Gymnasium ß, Coornhert Gymnasium, Gouda