Government
U.S. National Institutes of Health
nih.gov ↗U.S. federal medical research agency operating PubMed, NCBI, MedlinePlus, and trial registries.
SourceScore Index
A+·95Composite weighted across Discipline, Modern Reference, and Velocity.
A+ — federal medical research authority; primary-source data + policy.
Citation Discipline
A+·95
Federally-funded research subject to grant + ethics oversight; ClinicalTrials.gov registration required for human studies.
About this sub-score →Modern Reference
A·94
Operates PubMed + NCBI + ClinicalTrials.gov; APIs + bulk data + structured XML throughout.
About this sub-score →Citation Velocity
A+·96
Default biomedical citation source for AI engines + journalism; NIH press releases cited globally.
About this sub-score →Signals behind these scores
Citation Discipline
A+·95- Grant + ethics oversightHuman research subject to IRB review + federal regulations.
Modern Reference
A·94- ClinicalTrials.govMandatory trial registry, machine-readable.
Citation Velocity
A+·96- Pandemic-era cite rateSpiked 10x during COVID; sustained elevated baseline.
Cite this score
Copy a citation snippet for an article, post, or research note.
Markdown
[U.S. National Institutes of Health — SourceScore Index 95 (A+)](https://sourcescore.org/source/nih-gov/)
HTML
<a href="https://sourcescore.org/source/nih-gov/">U.S. National Institutes of Health — SourceScore Index 95 (A+)</a>
APA
SourceScore (v0.1). (2026). U.S. National Institutes of Health: SourceScore Index 95 (A+). Retrieved from https://sourcescore.org/source/nih-gov/
Embed this score
All embed options →Drop on your blog or dashboard. Free, no signup.
<iframe src="https://sourcescore.org/embed/nih-gov/" width="100%" height="380" loading="lazy" style="border:0;max-width:480px;" title="SourceScore: U.S. National Institutes of Health"></iframe>