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The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world's largest medical library. It collects materials in all major areas of the health sciences and to a lesser degree in such areas as chemistry, physics, botany

The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world

The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world