title: Reply to Drs Wong and Barrington.
authors.forename: Jeffrey J H
authors.initials: JJ
authors.lastname: Cheung
authors.forename: Imad T
authors.initials: IT
authors.lastname: Awad
authors.forename: Adam
authors.initials: A
authors.lastname: Dubrowski
mesh_terms: D000765:Anesthesia, Conduction / Q000592:standards*; D000776:Anesthesiology / Q000193:education* / Q000592:standards*; D057189:Checklist; D002983:Clinical Competence / Q000592:standards*; D003697:Delphi Technique; D004503:Education, Medical, Graduate / Q000592:standards*; D006801:Humans; D018084:Ultrasonography, Interventional / Q000592:standards*