title: The authors reply.
authors.affiliation: Department of Anesthesiology, The Ottawa Hospital, Ottawa, ON, Canada, and The Ottawa Hospital Research Institute, Ottawa, ON, Canada Faculty of Medicine, The University of Ottawa, Ottawa, ON, Canada Medicine, Surgery and Epidemiology and Community Medicine, The University of Ottawa, Ottawa, ON, Canada, and The Ottawa Hospital Research Institute, Ottawa, ON, Canada.
authors.forename: Manoj M
authors.initials: MM
authors.lastname: Lalu
authors.forename: Carly C
authors.initials: CC
authors.lastname: Barron
authors.forename: Dean A
authors.initials: DA
authors.lastname: Fergusson
mesh_terms: D002405:Catheterization, Central Venous / Q000379:methods*; D006801:Humans; D013350:Subclavian Vein; D018084:Ultrasonography, Interventional