title: Skjeldestad misrepresents Norwegian oral contraceptive use.
authors.forename: L H
authors.initials: LH
authors.lastname: Rygh
authors.forename: G
authors.initials: G
authors.lastname: Gadeholt
mesh_terms: D003267:Contraception / Q000379:methods / Q000706:statistics & numerical data / Q000639:trends*; D003276:Contraceptives, Oral / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D009664:Norway; D013997:Time Factors
chemical_list: D003276:Contraceptives, Oral