Journal Article 226 Diseases 216 Viral Diseases 215 Developing Countries 170 Hiv Infections 104 Asia 94 Hiv Infections--prevention and control 91 mehr ... Acquired Immunodeficiency Syndrome--prevention and control 90 Research Methodology 73 Acquired Immunodeficiency Syndrome 72 Economic Factors 64 Population 59 Africa 55 Demographic Factors 53 Behavior 52 Organization And Administration 51 Southern Asia 50 Epidemics 47 Health 47 India 45 Africa South Of The Sahara 44 Family Planning 44 Developed Countries 43 Measurement 42 Population Characteristics 42 Programs 42 Americas 41 Infections 38 Contraception 36 Sex Behavior 33 weniger ...