Peter A. Ljubenkov, Adam M. Staffaroni, Kaitlin B. Casaletto, Julio C. Rojas, Lawren Vandevrede, Hilary W. Heuer, Fanny M. Elahi, Danielle Brushaber, Tatiana M. Foroud, Leah K. Forsberg, Anna M. Karydas, Bradley F. Boeve, Howard J. Rosen, Adam L. Boxer, Joel H. Kramer, ARTFL and LEFFTDS Consortium Investigators