Erratum to: Can J Anesth/J Can Anesth (2012) 59:394–407 DOI 10.1007/s12630-012-9678-8

In the published manuscript, under the subheading “Industry resources”, the link for Boston Scientific’s online CRD reference database is incorrect and should read: http://www.bostonscientific.com/templatedata/imports/HTML/CRM/Product_Performance_Resource_Center/index.shtml.