title: [Therapeutic use of ORF 1557-.35 as a contraceptive. Preliminary note].
authors.forename: J
authors.initials: J
authors.lastname: Sampaio Lf
mesh_terms: D003267:Contraception; D003276:Contraceptives, Oral; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D012106:Research
chemical_list: D003276:Contraceptives, Oral
keywords: Clinical Research; Contraception; Contraceptive Methods; Evaluation; Family Planning; Oral Contraceptives; Research Methodology