BIOSIS Previews Provides access to the life sciences literature from more than 5,500 journals, books, conference proceedings, US patents, papers and posters, nomenclature rules, and taxonomic keys. Provides access to the traditional areas of biology, such as botany, zoology and microbiology, as well as related fields such as biomedical, agriculture, pharmacology and ecology. Interdisciplinary fields such as medicine, biochemistry, biophysics, bio-engineering and biotechnology are also included. Time span 1970-present.