LeechesAbbreviations as TopicMedical Subject HeadingsNatural Language ProcessingUnified Medical Language SystemKnowledge BasesTerminology as TopicMEDLINEDictionaries as TopicHirudo medicinalisSymbolismVocabulary, ControlledAbstracting and Indexing as TopicSemanticsArtificial IntelligenceAlgorithmsInformation Storage and RetrievalPattern Recognition, AutomatedMedical InformaticsData MiningLeechingBayes TheoremComputational Biology