title: [Research problems in hormonal contraception].
mesh_terms: D000328:Adult; D003276:Contraceptives, Oral; D003604:Czechoslovakia; D005260:Female; D006801:Humans; D012106:Research
chemical_list: D003276:Contraceptives, Oral
vernacular_title: Výzkumné problémy v hormonální antikoncepci.