INRIA Bordeaux Sud-Ouest, Talence, France, LaBRI, UMR 5800 CNRS, Talence, France, Institute of Neurodegenerative Diseases, UMR 5293 CNRS, Bordeaux, France.|Space Telescope Science Institute, Baltimore, Maryland, United States of America.|Office of the Director, The National Institutes of Health, Bethesda, Maryland, United States of America.