Accepted for Publication: April 23, 2014.
Published Online: October 13, 2014. doi:10.1001/jamaneurol.2014.1316.
Study concept and design: Le Ber, Brice.
Acquisition, analysis, or interpretation of data: Caroppo, Le Ber, Camuzat, Clot, Naccache, Lamari, De Septenville, Bertrand, Belliard, Hannequin, Colliot.
Drafting of the manuscript: Caroppo, Le Ber, Brice.
Critical revision of the manuscript for important intellectual content: Camuzat, Clot, Naccache, Lamari, De Septenville, Bertrand, Belliard, Hannequin, Colliot.
Statistical analysis: Lamari.
Obtained funding: Caroppo, Brice.
Administrative, technical, or material support: Le Ber, Camuzat, Clot, Lamari, De Septenville.
Study supervision: Le Ber.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by Investissements d’avenir grant ANR-10-IAIHU-06 (Dr De Septenville), France Alzheimer Association contract R12091DD (Dr Brice), Neuromics FP7 contract E12009DD (Dr Brice), the Programme Hospitalier de Recherche Clinique (Dr Le Ber), and PhD funding from the Carlo Besta Institute, Milano, Italy (Dr Caroppo).
Role of the Funder/Sponsor: The funding institutions had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; or preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: Lydia Guennec, BS, Isabelle Lagroua, BS, Sylvie Forlani, PhD, and Christelle Dussert, BS (DNA and cell bank of Centre de Recherche de l'Institut du Cerveau et de la Moelle Épinière, Hôpital de la Salpêtrière, Paris) provided technical assistance. None received financial compensation.