Are all the indexing fields available since 1969?
Below is a table displaying the field availability for the BIOSIS indexing fields: 1969-1992 1993-1997 1998-present Words in the title Added Keywords Descriptor field Concept Codes Biosystematic Codes Super Tax Major Concepts Organism Names Super Taxa Biosystematic Codes Taxa Notes Concept Codes Geographical Name Miscellaneous Descriptors Registry Numbers Chemical Names Sequence Data Industry Name Time Major Concepts Organism Names Super Taxa Biosystematic Codes Taxa Notes Concept Codes Geographical Name Miscellaneous Descriptors Registry Numbers Chemical Names Sequence Data Industry Name Time Parts, structures & systems Diseases Methods & Equipment Organizations Named Person