Assistant Professor of Gastroenterology, Saint-Louis Hosptial and Paris VII University, Paris, France. 1990-1994.
Research Associate, Division of Tumor Immunology, Dana Farber Cancer Institute and Department of Medicine, Harvard Medcical School, Boston, MA, USA. 1994-1999.
Associate Professor of Immunology, Rouen University Hospital and Medical School, Rouen, France. 1999-present.
Heterogeneity and function of human B cells, B cell targeted therapies, humoral immunodeficiencies.