Journal Article 1.283 Methode 353 Research Support, Non-U.S. Gov't 213 Geschichtswissenschaft 157 History 136 Family Planning 115 Contraception 114 mehr ... Wissenschaft 110 Contraceptive Methods 100 Geschichte 94 Historiography 89 Deutschland 80 Review 71 Barrier Methods 68 Developing Countries 67 Geschichtsschreibung 67 Developed Countries 62 Condom 52 Methodology 52 Diseases 49 Americas 48 Economic Factors 48 Contraceptives, Oral 45 Oral Contraceptives 42 Theorie 42 Programs 41 Water Pollutants, Chemical 41 Behavior 40 Organization And Administration 40 North America 39 weniger ...