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Author Index, Source Index, Organism Classifiers, Major Concepts, Concept Codes are searchable in the Biological Abstracts database.
Contains the Master Index of approximately 20,000 biomedical and life sciences words/phrases synonyms and related terms. Includes Concept Codes, Biosystematic Codes, chemical names and synonyms, Enzyme Commission Numbers, and registry numbers.
Note: The print version of the BIOSIS thesaurus (Master Index) was discontinued with last edition in 2001/2002.