Traumatic brain injury: results from the pilot phase of a database for the German-speaking countries : research letter - Younsi, Alexander; Unterberg, Andreas; Marzi, Ingo; Steudel, Wolf-Ingo; Uhl, Eberhard; Lemcke, Johannes; Berg, Florian; Woschek, Mathias; Friedrich, Michaela; Clusmann, Hans; Hamou, Hussam Aldin; Mauer, Uwe Max; et al. (Deutsches Ärzteblatt, 2023)