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

67%


Total
Publications

3.9K


Total Open
Publications

2.6K


Total
Citations

59K


Open Access
Percentage

67%


Total
Publications

3.9K


Total Open
Publications

2.6K


Total
Citations

59K

Website

download

Breakdown

16% 40% 2% 42%

Publisher Open

16%

Both

40%

Other Platform Open

2%

Closed

42%

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

61%OA Journal

OA Journal 61%

1K

Hybrid 26%

434

No Guarantees 13%

226

Other Platform Open

Domain 94%

1.2K

Other Internet 8%

98

Institution 5%

67

Public 1%

10

Preprint 0%

0

Other Platform Locations

Name

Platform Type

Publications

PubMed Central
Domain
1.2K
Unknown Repository
Other Internet
51
DOI
Other Internet
49
Europe PMC
Domain
41
Figshare
Public
10
ORA - Oxford University Research Archive
Institution
7
VU Research Portal
Institution
6
DANS - Data Archiving and Networked Services
Institution
6
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
4
Institute of Psychology, Chinese Academy of Sciences - Institutional Repository of Institute of Psychology, Chinese Academy of Sciences
Institution
4
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Data updated 18 August 2025

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