title: Communicating contraceptive effectiveness: an updated counseling chart.
authors.forename: Markus J
authors.initials: MJ
authors.lastname: Steiner
authors.forename: James
authors.initials: J
authors.lastname: Trussell
authors.forename: Sarah
authors.initials: S
authors.lastname: Johnson
mesh_terms: D003142:Communication; D003267:Contraception / Q000706:statistics & numerical data*; D003376:Counseling / Q000379:methods; D005193:Family Planning Services; D005260:Female; D006801:Humans