For systematic reviewers
You shouldn't have to hand-search LILACS, J-STAGE, and HAL one by one.
Cochrane handbook §4.3 says you should search beyond MEDLINE and Embase — including regional and non-English databases — to reduce language and geographic bias. In practice that means opening five tabs, learning five query syntaxes, and pasting results into a spreadsheet.
Symmathy runs that search for you. One query, federated across PubMed, Europe PMC, Cochrane, ClinicalTrials.gov, J-STAGE, LILACS, HAL, DOAJ, OpenAlex, and CrossRef. Non-English titles and abstracts are translated inline. Every record links back to its original source — nothing is rewritten or rated.
Federated search
One query, ten+ databases. Includes the regional sources most reviewers search manually: J-STAGE (Japan), LILACS (Latin America), HAL (France), ThaiJO (Thailand).
Inline translation
Titles and abstracts in Japanese, Portuguese, Spanish, French, Thai, and more are translated so you can screen them — but the original record is always one click away.
Reproducible methods
Every search returns a list of sources queried, query terms used, and timestamps — the audit trail a PRISMA flow diagram needs.
We find. We don't grade.
No "best paper" badges, no quality scores, no recommendations. Symmathy surfaces records and links to originals — risk-of-bias and GRADE stay with you.
A concrete example
A dengue review in PubMed alone misses an estimated 30–40% of the clinical literature, much of which is published in Portuguese on LILACS and indexed nowhere in MEDLINE. The same is true for Chagas, leishmaniasis, schistosomiasis, and Japanese encephalitis. If your review touches any tropical or regionally-clustered disease, the missing evidence isn't a footnote — it's most of the evidence.
Prefer email?
Tell us what you're searching and where MEDLINE is failing you: connect@symmathy.org.