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Gene regulation and protein-related databases

Complementary search results to BIOSIS Previews for biology

Major literature database for medicine. 1946-.

Popular, free aggregating service with 45 million abstracts and 10 million full-text papers. Can be browsed by subject area. Content is 34% biology and 29% medicine. From ResearchGate GmbH in Berlin, Germany.

Finds MEDLINE citations in PubMed and uses natural language processing to extract semantic predications from titles and abstracts. The predications are used to create a drawing showing relationships between terms or concepts. A free user account must be created.

This is a database of zoological and natural history literature citations going back to 1864. International coverage of journals.