title: Contraception in women over forty.
authors.forename: F E
authors.initials: FE
authors.lastname: Riphagen
authors.forename: J A
authors.initials: JA
authors.lastname: Fortney
authors.forename: S
authors.initials: S
authors.lastname: Koelb
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003268:Contraception Behavior; D003270:Contraceptive Agents; D003273:Contraceptive Devices / Q000706:statistics & numerical data; D005060:Europe; D005260:Female; D006801:Humans; D008875:Middle Aged; D013245:Sterilization, Reproductive; D014481:United States
chemical_list: D003270:Contraceptive Agents