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

77%


Total
Publications

5.7K


Total Open
Publications

4.4K


Total
Citations

580K


Open Access
Percentage

77%


Total
Publications

5.7K


Total Open
Publications

4.4K


Total
Citations

580K

Wikipedia

Website

download

Breakdown

11% 46% 20% 23%

Publisher Open

11%

Both

46%

Other Platform Open

20%

Closed

23%

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

47%OA Journal

OA Journal 47%

1.5K

Hybrid 34%

1.1K

No Guarantees 19%

622

Other Platform Open

Domain 86%

3.2K

Preprint 17%

618

Institution 15%

563

Other Internet 14%

510

Public 12%

456

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
3.2K
Europe PMC
Domain
1.8K
Semantic Scholar
Public
404
bioRxiv
Preprint
384
DOI
Other Internet
283
arXiv
Preprint
137
California Digital Library - eScholarship
Other Internet
76
University of California - eScholarship University of California
Institution
65
Research Square
Preprint
62
Le Centre pour la Communication Scientifique Directe - HAL - TYPE ART
Other Internet
60
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Data updated 7 April 2025

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