PubMed Database
Direct REST API access to the National Library of Medicine's biomedical literature repository for systematic reviews and research analysis.
Triggers
- User asks to search for medical/scientific literature
- User needs to find research papers on a cardiology topic
- User wants to build a literature review
- User requests evidence for a clinical claim
- User needs citations for an article or newsletter
Core Capabilities
Search Construction
Build sophisticated queries combining:
- Boolean operators (AND, OR, NOT)
- Field tags:
[mh]for MeSH terms,[au]for author,[ti]for title,[tiab]for title/abstract - Publication filters by date, type, and availability
E-utilities API Endpoints
| Endpoint | Purpose | |----------|---------| | ESearch | Search and retrieve PMIDs | | EFetch | Retrieve full records | | ESummary | Get document summaries | | EPost | Upload ID lists | | ELink | Find related articles |
Rate limits: 3 requests/second (10 with API key)
Filtering Options
- Publication type (clinical trials, systematic reviews, meta-analyses)
- Date ranges
- Text availability (free full text, abstracts)
- Species (human studies)
Citation Export Formats
- NBIB (for reference managers)
- AMA, MLA, APA, Vancouver styles
- BibTeX for LaTeX
Example Queries
Cardiology-Specific Searches
# Recent SGLT2 inhibitor trials in heart failure
"SGLT2 inhibitors"[mh] AND "heart failure"[mh] AND "clinical trial"[pt] AND "2023"[dp]:present[dp]
# Interventional cardiology systematic reviews
"percutaneous coronary intervention"[mh] AND "systematic review"[pt]
# TAVR outcomes
"transcatheter aortic valve replacement"[tiab] AND (outcomes[tiab] OR mortality[tiab])
Building Evidence for Content
- Start with MeSH terms for precision
- Add free-text synonyms for coverage
- Filter by publication type and recency
- Review abstracts for relevance
- Extract key findings with PMIDs for citation
Workflow Integration
When writing cardiology content:
- Use this skill to find supporting evidence
- Document PMIDs for all factual claims
- Prefer systematic reviews and meta-analyses
- Include recent trials (last 2-3 years) for currency
- Cross-reference with citation-management skill for formatting
Best Practices
- Always verify claims with primary sources
- Note study limitations when citing
- Distinguish between observational and RCT evidence
- Use MeSH terms for reproducible searches
- Document search strategy for transparency