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Journal Coverage

The source of article counts and citation data for ESI come from 11,000+ journals indexed in Web of Science (Science Citation Index Expanded and Social Sciences Citation Index only) over a 10-year period.

Each journal is assigned to one of 22 research fields. In ESI, a journal can be assigned to only one field. The Multidisciplinary field contains journals such as Science and Nature, and this categorization should be taken into account when analyzing the field ranking of an individual scientist, institution, or country/territory.