Journal Article 1.322 Methode 358 Research Support, Non-U.S. Gov't 213 Geschichtswissenschaft 157 Family Planning 139 Contraception 137 History 137 mehr ... Wissenschaft 110 Geschichte 102 Contraceptive Methods 100 Historiography 89 Deutschland 80 Developing Countries 73 Review 72 Developed Countries 71 Barrier Methods 68 Geschichtsschreibung 68 Contraceptives, Oral 62 Diseases 62 Methodology 54 Americas 52 Condom 52 Economic Factors 49 Research Methodology 47 Programs 44 Asia 43 Behavior 43 North America 43 Organization And Administration 43 Water Pollutants, Chemical 43 weniger ...