title: An introductory letter in advance of a telephone survey may increase response rate.
authors.affiliation: Foodborne, Waterborne, and Zoonotic Infections Division, Population and Public Health Branch, Health Canada, Guelph, Ontario.
authors.forename: S E
authors.initials: SE
authors.lastname: Majowicz
authors.forename: V L
authors.initials: VL
authors.lastname: Edge
authors.forename: J
authors.initials: J
authors.lastname: Flint
authors.forename: P
authors.initials: P
authors.lastname: Sockett
authors.forename: K
authors.initials: K
authors.lastname: Doré
authors.forename: L
authors.initials: L
authors.lastname: McDougall
authors.forename: V
authors.initials: V
authors.lastname: Remple
authors.forename: M
authors.initials: M
authors.lastname: Fyfe
authors.forename: S
authors.initials: S
authors.lastname: Henson
authors.forename: K
authors.initials: K
authors.lastname: Gaebel
mesh_terms: D015982:Bias; D001955:British Columbia; D015709:Correspondence as Topic; D003625:Data Collection / Q000379:methods*; D006306:Health Surveys; D006801:Humans; D007407:Interviews as Topic / Q000379:methods*; D017010:Reminder Systems; D012107:Research Design; D012424:Rural Population; D013689:Telephone; D014505:Urban Population