Université Laval, Quebec City, Canada, and Institute of Biomolecular Chemistry, CNR …

Professor for Pharmaceutical Chemistry, Friedrich Schiller University Jena

Brigham and Women's Hospital, Harvard Medical School

William Harvey Research Institute, Barts and the London School of Medicine

Professor of Biochemistry, Juntendo University School of Medicine

Research Chemist, USDA-ARS-Western Human Nutrition Research Center

Professor University of California Berkeley

Associate Professor of Biochemistry, Karolinska Institute

Research Scientist, University of California, Davis

Catedrático de Fisiología (Full Professor) , Universidad de Navarra.