Tackling concussion in professional rugby union: a case–control study of tackle-based risk factors and recommendations for primary prevention
Matthew J Cross, Ross Tucker, Martin Raftery, Ben Hester, Sean Williams, Keith A Stokes, Craig Ranson, Prav Mathema, Simon Kemp
British Journal of Sports Medicine Aug 2019, 53 (16) 1021-1025; DOI: 10.1136/bjsports-2017-097912