Diagnosis 7 Diagnostic techniques 6 Diagnosis of Animal Diseases, (New March 2000) 4 Diagnostic imaging 4 Disease control 4 Epidemiology 4 Disease prevention 3 Genetics and Molecular Biology of Microorganisms, (New March 2000) 3 Hematologic Neoplasms 3 Human diseases 3 Immunology 3 Molecular Biology and Molecular Genetics, (Discontinued March 2000, Reinstated and Revised June 2002) 3 Molecular biology 3 Pesticides and Drugs; Control, (New March 2000) 3 Prion, Viral, Bacterial and Fungal Pathogens of Animals, (New March 2000) 3 Blood 2 Cattle 2 Chemistry-- Medicine-- Biotechnology 2 Diagnostic microbiology 2 Diagnostic virology 2 Disease prevalence 2 Diseases 2 Eye diseases 2 Genetics and Molecular Genetics (Wild Animals), (New March 2000) 2 Goats 2 Host Resistance and Immunity 2 Image processing 2 Leukemia 2 MEDICAL / Diseases 2 Man 2