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

74%


Total
Publications

5.7K


Total Open
Publications

4.2K


Total
Citations

606K


Open Access
Percentage

74%


Total
Publications

5.7K


Total Open
Publications

4.2K


Total
Citations

606K

Wikipedia

Website

download

Breakdown

16% 41% 14% 29%

Publisher Open

16%

Both

41%

Other Platform Open

14%

Closed

29%

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

60%OA Journal

OA Journal 60%

1.8K

Hybrid 20%

587

No Guarantees 20%

592

Other Platform Open

Domain 76%

2.3K

Other Internet 21%

648

Institution 19%

573

Public 4%

125

Preprint 3%

100

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
2.3K
DOI
Other Internet
635
Europe PMC
Domain
169
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI
Institution
119
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
107
Figshare
Public
101
DANS - Data Archiving and Networked Services
Institution
86
arXiv
Preprint
67
Spanish National Research Council (CSIC - DIGITAL.CSIC)
Institution
33
Unknown Repository
Other Internet
28
1 / 20

Data updated 18 August 2025

Share

Share

Share