Authors: Stefania Galimberti; Francesca Graziano; Andrew I R Maas; Giulia Isernia; Fiona Lecky; Sonia Jain; Xiaoying Sun; Raquel C Gardner; Sabrina R Taylor; Amy J Markowitz; Geoffrey T Manley; Maria Grazia Valsecchi; Giuseppe Bellelli; Giuseppe Citerio; CENTER-TBI and TRACK-TBI participants and investigators