The 'Where, What, How and Who' of Head Accelerations in Rugby Union. Head Acceleration Events From Men's and Women's Northern and Southern Hemisphere Competitions. - Roe, Gregory; Sawczuk, Thomas; Tooby, James; Owen, Cameron; Starling, Lindsay; Tucker, Ross; Stokes, Keith; Brown, James; Cross, Matt; Falvey, Éanna; Hendricks, Sharief; Kemp, Simon; et al. (European Journal of Sport Science, 2025)