Chief Editor: Brian H. Rowe, MD, MSc, CCFP(EM), FCCPCanada Research Chair in Emergency Airway DiseasesProfessor and Research Director, Department of Emergency Medicine,University of AlbertaEdmonton, Alberta, Canada Section Editors:Eddy S. Lang, MDCM, CCFP(EM), CSPQAssistant Professor of Emergency MedicineDepartment of Family MedicineMcGill UniversityMontrealand Attending Physician, Emergency MedicineSMBD Jewish General Hospital, Montreal, Quebec, CanadaMichael D. Brown, MD, MScProfessor of Epidemiology and Emergency MedicineCollege of Human Medicine, Michigan State UniversitySpectrum Health – Butterworth HospitalsGrand Rapids, Michigan, USA Debra Houry, MD, MPHDirector, Center for Injury ControlVice Chair for ResearchDepartment of Emergency Medicine, Emory UniversityAtlanta, Georgia, USADavid H. Newman, MDAssistant ProfessorDepartment of MedicineColumbia University College of Physicians and SurgeonsNew York, USAPeter C. Wyer, MDAssociate Clinical Professor, Department of MedicineColumbia University College of Physicians and SurgeonsNew York, USA