Abstract: Lindsay D. Nelson, PhD; Nancy R. Temkin, PhD; Sureyya Dikmen, PhD; Jason Barber, MS; Joseph T. Giacino, PhD; Esther Yuh, MD, PhD; Harvey S. Levin, PhD; Michael A. McCrea, PhD; Murray B. Stein, MD, MPH; Pratik Mukherjee, MD, PhD; David O. Okonkwo, MD, PhD; Claudia S. Robertson, MD; Ramon Diaz-Arrastia, MD, PhD; Geoffrey T. Manley, MD, PhD; and the TRACK-TBI Investigators; Opeolu Adeoye, MD; Neeraj Badjatia, MD; Kim Boase, BA; Yelena Bodien, PhD; M. Ross Bullock, MD, PhD; Randall Chesnut, MD; John D. Corrigan, PhD, ABPP; Karen Crawford, MIS; Ann-Christine Duhaime, MD; Richard Ellenbogen, MD; V. Ramana Feeser, MD; Adam Ferguson, PhD; Brandon Foreman, MD; Raquel Gardner, MD; Etienne Gaudette, PhD; Luis Gonzalez, BA; Shankar Gopinath, MD; Rao Gullapalli, PhD; J Claude Hemphill, MD; Gillian Hotz, PhD; Sonia Jain, PhD; Frederick Korley, MD, PhD; Joel Kramer, PsyD; Natalie Kreitzer, MD; Chris Lindsell, PhD; Joan Machamer, MA; Christopher Madden, MD; Alastair Martin, PhD; Thomas McAllister, MD; Randall Merchant, PhD; Florence Noel, PhD; Eva Palacios, PhD; Daniel Perl, MD; Ava Puccio, PhD; Miri Rabinowitz, PhD; Jonathan Rosand, MD, MSc; Angelle Sander, PhD; Gabriela Satris, MSc; David Schnyer, PhD; Seth Seabury, PhD; Mark Sherer, PhD; Sabrina Taylor, PhD; Arthur Toga, PhD; Alex Valadka, MD; Mary J. Vassar, RN, MS; Paul Vespa, MD; Kevin Wang, PhD; John K. Yue, MD; Ross Zafonte, DO