title: [Combined oral contraceptives with extremely low doses of estrogen (15 micrograms in a single tablet)].
authors.affiliation: Ustav pro péci o matku a dítĕ, Praha.
authors.forename: P
authors.initials: P
authors.lastname: Cepický
authors.forename: K
authors.initials: K
authors.lastname: Dvorák
authors.forename: Z
authors.initials: Z
authors.lastname: Holub
authors.forename: R
authors.initials: R
authors.lastname: Uzel
mesh_terms: D003277:Contraceptives, Oral, Combined / Q000009:adverse effects*; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects; D045166:Estradiol Congeners / Q000008:administration & dosage* / Q000009:adverse effects; D004997:Ethinyl Estradiol / Q000008:administration & dosage* / Q000009:adverse effects; D005260:Female; D006801:Humans; D011247:Pregnancy; D012307:Risk Factors
chemical_list: D003277:Contraceptives, Oral, Combined; D003278:Contraceptives, Oral, Hormonal; D045166:Estradiol Congeners; D004997:Ethinyl Estradiol