title: Erratum.
authors.affiliation: McMaster University, Hamilton, Ontario, Canada.
authors.forename: James R
authors.initials: JR
authors.lastname: Bain
authors.affiliation: McMaster University, Hamilton, Ontario, Canada.
authors.forename: Margaret
authors.initials: M
authors.lastname: Fahnestock
authors.affiliation: Toronto, Ontario, Canada.
authors.forename: Yaniv
authors.initials: Y
authors.lastname: Hason
authors.affiliation: Vancouver Island Health Authority, Victoria, British Columbia, Canada.
authors.forename: Caroline
authors.initials: C
authors.lastname: Quartly
authors.affiliation: Health Canada, Ottawa, Ontario, Canada.
authors.forename: Karen
authors.initials: K
authors.lastname: Veltri