文献引用整理与核验

references/search_strategies.md

Google Scholar and PubMed query construction: operators, field tags, MeSH terms, date and publication-type filters, and worked query examples.

Search Strategies

Google Scholar Best Practices

Use Google Scholar's documented search controls: quoted titles/phrases, author:, exclusion terms, and the Advanced Search publication/title/date fields. Use year controls or script arguments rather than 2020..2024; Scholar does not offer a global sort:citations operator. Citation counts reflect age, field, and database coverage; they are discovery signals, not evidence-quality thresholds.

# Find recent reviews; examples are illustrative searches.
python scripts/search_google_scholar.py 'CRISPR review' --year-start 2023 --year-end 2024

# Author and topic
python scripts/search_google_scholar.py 'author:Church "synthetic biology"'

# Citation sorting applies only to the retrieved sample.
python scripts/search_google_scholar.py '"deep learning"' \
  --year-start 2012 --year-end 2015 --sort-by citations --limit 50

For global citation-count ordering over API search matches, use the bundled OpenAlex client (--sort-by citations); document the different database coverage.

PubMed Best Practices

Using MeSH Terms: MeSH (Medical Subject Headings) provides controlled vocabulary for precise searching.

1. Find MeSH terms at https://meshb.nlm.nih.gov/search
2. Use in queries: "Diabetes Mellitus, Type 2"[MeSH]
3. Combine with keywords for comprehensive coverage

Field Tags:

[Title]              # Search in title only
[Title/Abstract]     # Search in title or abstract
[Author]             # Search by author name
[Journal]            # Search specific journal
[Publication Date]   # Date range
[Publication Type]   # Article type
[MeSH]              # MeSH term

Building Complex Queries:

# Clinical trials on diabetes treatment published recently
"Diabetes Mellitus, Type 2"[MeSH] AND "Drug Therapy"[MeSH] 
AND "Clinical Trial"[Publication Type] AND 2020:2024[Publication Date]

# Reviews on CRISPR in specific journal
"CRISPR-Cas Systems"[MeSH] AND "Nature"[Journal] AND "Review"[Publication Type]

# Specific author's recent work
"Smith AB"[Author] AND cancer[Title/Abstract] AND 2022:2024[Publication Date]

E-utilities for Automation: The bundled PubMed script uses ESearch and EFetch. Other E-utilities are documented manual alternatives:

• ESearch: Search and retrieve PMIDs
• EFetch: Retrieve full metadata
• ESummary: Get summary information
• ELink: Find related articles

See references/pubmed_search.md for complete API documentation.