telephone numbers, drug prices, antimicrobial resistance patterns, etc. This form of custom data is particularly useful when running GIDEON on institutional networks. The data in GIDEON are derived from: all peer-reviewed journals in the fields of Infectious Diseases, Pediatrics, Internal Medicine, Tropical Medicine, Travel Medicine, Antimicrobial Pharmacology and Clinical Microbiology a monthly electronic literature search based on all relevant keywords all available health ministry reports (both printed and electronic) standard texts abstracts of major meetings References Epidemiological study projects Medical expert systems Expert systems Infectious disease organizations Health informatics Online databases Parasitic diseases Tropical diseases