World Health Organization 5 Congenital abnormalities - epidemiology 2 Congenital abnormalities - prevention and control 2 Developing countries 2 Neural tube defects 2 Public health surveillance 2 Beaglehole, Robert 1 Centers for Disease Control and Prevention (U.S.) 1 Centers for Disease Control and prevention 1 Endemic Diseases 1 Epidemiologic Surveillance 1 Epidemiology 1 Febrile 1 Foklan Tapu 1 Global Malaria Programme 1 Health research evidence 1 Illness 1 Immunologic tests methods 1 Influenza, human diagnosis 1 Influenza, human epidemiology 1 Influenza, human virology 1 Insect Vectors - Prevention and Control 1 International Clearinghouse for Birth Defects Monitoring System 1 International Clearinghouse for Birth Defects Monitoring Systems 1 Kjellstrom, Tord 1 Malaria - Prevention and Control 1 Manual for the laboratory diagnosis and virological surveillance of influenza 1 Manuals 1 Morang 1 Nepal 1