Plain words are fine — the evidence choice appends its PubMed publication-type filter to this exact text.
Larger numbers take longer to search and summarise.
Nothing searched yet
Run a search and this shelf fills with the plain-English read, the papers table with journal, year and link, the coverage line and the PDF.
What happens when you search
- PubMed is queried with the exact string in the box, limited by your earliest year and paper count.
- The set is read — a short summary of what these papers agree on, where they disagree, and what they cannot answer.
- A PDF is written with the same snapshot and the full papers table.
Records come from live PubMed. The summary describes the retrieved set only — it is not clinical advice.
Why does the evidence menu edit my search string?
So nothing is hidden. Choosing "Clinical trials only" appends the matching PubMed publication-type text to the box, and you can edit or delete it before running.
What does the coverage line tell me?
How many records matched, how many were summarised, and the year span covered — the honest edges of the snapshot.
Can I widen a search after seeing the result?
Yes. Change the year, the count or the evidence type on the Search tab and run again; your previous words stay in the box.