RT Journal Article SR Electronic T1 Consensus statement on concussion in sport: the 4th International Conference on Concussion in Sport held in Zurich, November 2012 JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 250 OP 258 DO 10.1136/bjsports-2013-092313 VO 47 IS 5 A1 Paul McCrory A1 Willem H Meeuwisse A1 Mark Aubry A1 Bob Cantu A1 Jiří Dvořák A1 Ruben J Echemendia A1 Lars Engebretsen A1 Karen Johnston A1 Jeffrey S Kutcher A1 Martin Raftery A1 Allen Sills A1 Brian W Benson A1 Gavin A Davis A1 Richard G Ellenbogen A1 Kevin Guskiewicz A1 Stanley A Herring A1 Grant L Iverson A1 Barry D Jordan A1 James Kissick A1 Michael McCrea A1 Andrew S McIntosh A1 David Maddocks A1 Michael Makdissi A1 Laura Purcell A1 Margot Putukian A1 Kathryn Schneider A1 Charles H Tator A1 Michael Turner YR 2013 UL http://bjsm.bmj.com/content/47/5/250.abstract AB