High-magnitude headers are not associated with structural and functional brain changes in active high-level football (soccer) players / Franziska Katharina Mund, Nina Feddermann-Demont, Goetz H Welsch, Carsten Schuenemann, Jens Fiehler, Christian Thaler, Lukas Meyer, Rebecca Reeschke, Claus Reinsberger. In: BMJ Open Sport & Exercise Medicine. Paderborn : Universitätsbibliothek, 2026