Journal Article 1.323 Methode 363 Research Support, Non-U.S. Gov't 215 Geschichtswissenschaft 158 History 140 Family Planning 115 Contraception 114 mehr ... Wissenschaft 110 Geschichte 103 Contraceptive Methods 100 Historiography 91 Deutschland 82 Review 75 Geschichtsschreibung 69 Barrier Methods 68 Developing Countries 67 Developed Countries 62 Methodology 54 Condom 52 Diseases 49 Americas 48 Economic Factors 48 Contraceptives, Oral 45 Water Pollutants, Chemical 44 Theorie 43 Oral Contraceptives 42 Programs 41 Behavior 40 Organization And Administration 40 North America 39 weniger ...