title: Unreliability of online survey methods to assess population preferences in contraceptive practices.
authors.forename: Charles
authors.initials: C
authors.lastname: Savona-Ventura
mesh_terms: D000328:Adult; D003267:Contraception / Q000379:methods / Q000706:statistics & numerical data*; D003268:Contraception Behavior / Q000706:statistics & numerical data*; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D020407:Internet; D008297:Male; D008319:Malta; D015588:Observer Variation; D057240:Patient Preference / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D057566:Self Report; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D055815:Young Adult