United States National Library of Medicine

United States National Library of Medicine

The United States National Library of Medicine, operated by the United States federal government, is the world's largest medical library. Located in Bethesda, Maryland, the NLM is an institute within the National Institutes of Health. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for United States National Library of Medicine, United States, covering academic research published from 2000 to 2024. Read More.


Open Access Percentage

75%


Total
Publications

5.7K


Total Open
Publications

4.2K


Total
Citations

610K


Open Access
Percentage

75%


Total
Publications

5.7K


Total Open
Publications

4.2K


Total
Citations

610K

Wikipedia

Website

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Breakdown

13% 42% 19% 26%

Publisher Open

13%

Both

42%

Other Platform Open

19%

Closed

26%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

050100150200250300350400Total Publications
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Open

Closed

Publisher Open

62%OA Journal

OA Journal 62%

1.8K

Hybrid 20%

614

No Guarantees 18%

534

Other Platform Open

Domain 66%

2.3K

Other Internet 29%

983

Institution 17%

569

Preprint 13%

431

Public 4%

127

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
2.3K
DOI
Other Internet
982
bioRxiv
Preprint
295
Europe PMC
Domain
182
Office of Scientific and Technical Information
Institution
119
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
108
Figshare
Public
103
Royal Netherlands Academy of Arts and Sciences
Institution
97
arXiv
Preprint
78
medRxiv
Preprint
34
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Data updated 18 August 2025

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