Big 41. Big 4 Databases: Pubmed, Embase, Web of Knowledge, Scopus Isla Kuhn Reader Services Librarian, Medical Library CAMBRIDGE UNIVERSITY LIBRARY MEDICAL LIBRARY 5. Web of Science – 11,180 Embase – 5,124 Scopus – 18,2451 PubMed/Medline – 5,200 441 6,669 1,116 1,568 6,949 60 3,055 7. But lots of similarities….. Pubmed Embase WoK Scopus Years of coverage 1954 - present 1980 - present 1970 - present 1996 – to present Subject headings Health & medicine Health & medicine (pharmacology strength Arts, humanities, sciences, social sciences Arts, humanities, sciences, social sciences Added bonus Subject headings Subject headings “ H” index Journal Impact factors; Conference proceedings “ H” index; Web & Patents search; Journal analyzer 8. Lots of similarities….. Pubmed Embase WoK Scopus Password required? (RAVEN) Complex search option (allowing for Boolean “and”/”or” searching Subject headings Save Searches Alerts Related articles Citation tracking Links to full-text Export to endnote/refman etc