Health Economics, (New March 2000) 13 Human diseases 10 Prion, Viral, Bacterial and Fungal Pathogens of Humans, (New March 2000) 9 Epidemiology 8 Health Services 8 Man 7 Public health 7 more ... Protozoan, Helminth and Arthropod Parasites of Humans, (New March 2000) 6 Health policy 5 Policy and Planning 5 Zoonoses 5 Disease control 4 Food Economics, (New March 2000) 4 Health services 4 Prevention 4 Communicable diseases 3 Disease transmission 3 Ethics 3 Health care 3 Human Immunology and Allergology, (New March 2000) 3 Human Nutrition (General) 3 Infections 3 Infectious diseases 3 Mathematical models 3 Mortality 3 Non-communicable Human Diseases and Injuries 3 Prion, Viral, Bacterial and Fungal Pathogens of Animals, (New March 2000) 3 prevention & control 3 Access 2 Clinical aspects 2 less ...