External Validation of a Prognostic Model for Outcome After Mild Traumatic Brain Injury at 6 Months Post Injury. - van Pinxteren R; Marzolla MC; Wijenberg MLM; van Heugten CM; van Osch FHM; van der Naalt J; Spikman JM; Timmerman ME; Roor JJ (European journal of neurology, 2026)