Position-based assessment of head impact frequency, severity, type, and location in high school American football - Bagherian, Amirhossein; Abbasi Ghiri, Alireza; Ramzanpour, Mohammadreza; Wallace, James; Elashy, Sammy; Seidi, Morteza; Memar, Marzieh (Frontiers in Bioengineering and Biotechnology, 2025)