1. Department of Family and Preventive Medicine Division of Biostatistics and BioinformaticsUniversity of California San DiegoLa JollaCA USA
2. INSERM, U897Biostatistics DepartmentBordeauxFrance
3. Department of NeuroscienceUniversity of California San DiegoLa JollaCA USA
4. Department of Public Health SciencesBiostatistics UnitUniversity of California DavisDavisCA USA
5. Department of RadiologyMayo ClinicRochesterMN USA
6. Center for Imaging of Neurodegenerative DiseasesUniversity of CaliforniaSan FranciscoCA USA
7. INSERM, U897Aging DepartmentBordeauxFrance