NIH vs U.S. National Library of Medicine

NIH and U.S. National Library of Medicine both are nouns.

Word	Noun	Adjective	Verb	Adverb
NIH	Yes	No	No	No
U.S. National Library of Medicine	Yes	No	No	No

NIH (noun)	U.S. National Library of Medicine (noun)
an agency in the Department of Health and Human Services whose mission is to employ science in the pursuit of knowledge to improve human health; is the principal biomedical research agency of the federal government	the world's largest medical library