-
Library of Congress Subject Headings
LCSH has been actively maintained since 1898 to catalog materials held at the Library of Congress. By virtue of cooperative cataloging other libraries around the United States... -
Chronicling America
Chronicling America provides access to information about historic newspapers and select digitized newspaper pages. 140,000 newspapers, 3.2 million pages. Issues The statistics... -
Kidney and Urinary Pathway Knowledge Base
The KUPKB is a collection of omics datasets that have been extracted from scientific publications and other related renal databases. The iKUP browser provides a single point of... -
lexinfo
Ontology of lexical categories