title: Randomized trial of questionnaire length.
authors.forename: Kenneth J
authors.initials: KJ
authors.lastname: Rothman
authors.forename: Ellen M
authors.initials: EM
authors.lastname: Mikkelsen
authors.forename: Anders
authors.initials: A
authors.lastname: Riis
authors.forename: Henrik T
authors.initials: HT
authors.lastname: Sørensen
authors.forename: Lauren A
authors.initials: LA
authors.lastname: Wise
authors.forename: Elizabeth E
authors.initials: EE
authors.lastname: Hatch
mesh_terms: D015982:Bias; D015331:Cohort Studies; D003718:Denmark; D005260:Female; D005298:Fertility; D006801:Humans; D020407:Internet; D018579:Patient Selection; D011795:Surveys and Questionnaires