National Clinical Research

National Clinical Research

Open Access statistics for National Clinical Research, United States, covering academic research published from 2000 to 2024.

Open Access statistics for National Clinical Research, United States, covering academic research published from 2000 to 2024. Read More.


Open Access Percentage

73%


Total
Publications

3.9K


Total Open
Publications

2.9K


Total
Citations

63K


Open Access
Percentage

73%


Total
Publications

3.9K


Total Open
Publications

2.9K


Total
Citations

63K

Website

download

Breakdown

13% 34% 24% 29%

Publisher Open

13%

Both

34%

Other Platform Open

24%

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

0100200300400500600700Total Publications
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Open

Closed

Publisher Open

63%OA Journal

OA Journal 63%

1K

Hybrid 22%

367

No Guarantees 15%

244

Other Platform Open

Domain 58%

1.2K

Preprint 23%

485

Other Internet 19%

394

Institution 3%

58

Public 0%

9

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
1.2K
Research Square
Preprint
478
DOI
Other Internet
376
Europe PMC
Domain
41
Unknown Repository
Other Internet
18
Figshare
Public
9
Preprints
Preprint
7
DANS - Data Archiving and Networked Services
Institution
7
VU Research Portal
Institution
6
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
4
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Data updated 18 August 2025

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