Distribution box-plots for acute (within 48 h) (A) quantitative susceptibility maps (QSM) magnetic resonance imaging (MRI) measurements and (B) clinical assessment scores (from baseline). Distribution plots for the matched control groups are also displayed for each metric. WM, white matter; SCGM, subcortical gray matter; SCAT, Sport Concussion Assessment Tool; SAC, Standardized Assessment of Concussion; BESS, Balance Error Scoring System.