title: [Estroprogestational agents; their choice and utilization in family planning. 1st part].
mesh_terms: D003276:Contraceptives, Oral; D004357:Drug Synergism; D004967:Estrogens; D005260:Female; D006801:Humans; D011372:Progestins
chemical_list: D003276:Contraceptives, Oral; D004967:Estrogens; D011372:Progestins
vernacular_title: Les aestro-progestatifs; leur choix et utilisation dans la planification familiale. Première partie.