title: Towards an operational definition of sports concussion: identifying a limitation in the 2012 Zurich consensus statement and suggesting solutions.
authors.affiliation: High Performance Unit, New Zealand Rugby, Wellington, New Zealand.
authors.forename: Kenneth Lincoln
authors.initials: KL
authors.lastname: Quarrie
authors.affiliation: High Performance Unit, New Zealand Rugby, Wellington, New Zealand.
authors.forename: Ian Robert
authors.initials: IR
authors.lastname: Murphy
mesh_terms: D006801:Humans; D001265:Athletic Injuries / Q000175:diagnosis; D001924:Brain Concussion / Q000175:diagnosis; D015601:Injury Severity Score; D007600:Judgment; D017410:Practice Guidelines as Topic; D013178:Sports Medicine; D003245:Consensus Statements as Topic
keywords: Concussion; Consensus statement; Surveillance