S100B and subarachnoid hemorrhage: A total of three patients died due to TBI within 7 days of trauma; two initially presented with GCS 14-15 (Patient 1: multiple brain bleeds, prehospital S100B 0.519 μg/l, and in-hospital 0.149 μg/l, Patient 2: subarachnoid hemorrhage, prehospital S100B 1.31 μg/l and in-hospital 0.373 μg/l respectively) and one with GCS 9-13 (Patient 3: subarachnoid hemorrhage, prehospital S100B 9.62 μg/l and in-hospital 8.05 μg/l).