Two clinicians reading a medical journal at a desk.
Evidence

Ask the clinical evidence.

At no charge for verified clinicians. One answer without an account.

Decision support for registered healthcare professionals. It does not replace clinical judgement.

An answer you can check before you act on it.

Ask in the words you would use with a colleague. Every sentence that comes back names the paper or the guideline behind it, and each one carries its grade.

Every source carries its gradeGraded high, moderate or low by study design and GRADE, so you can see the strength of a claim and not only its citation.
It says when the evidence is thinWhere the literature will not carry an answer, it says so and shows you what it found, rather than filling the gap.
Guidelines first, where you practiseNICE, SIGN and the royal colleges lead a UK answer. Set the jurisdiction and the order changes with it.
Into the letter, from the consultSearch without leaving the note, then put the answer and its citations into the patient letter.

How an answer is built.

  1. It reads the questionPopulation, intervention, comparator and outcome come out of your sentence, and decide which sources are worth asking.
  2. It asks twenty sources at oncePubMed, Europe PMC, Cochrane, NICE, the royal colleges, TRIP, ClinicalTrials and the medicines compendium among them, together rather than in turn.
  3. It reads the strongest papersThe pool is reranked, near duplicates are dropped, and what survives is read rather than counted.
  4. It grades what it foundEach source takes a GRADE band from its study design, and a retraction is flagged where the record shows one.
  5. It checks itselfEvery claim is put back to the sources it cites. A claim nothing supports does not reach you.

Written to be checked.

A clinical answer is only worth the sources under it. Every sentence here names the paper or the guideline it came from, and the citation opens the source itself, not a summary of it.

That is also the point of the abstention. An answer service that always answers is telling you it found something, every time, about everything. This one will tell you when it did not.

Two clinicians reading a medical journal at a desk.

For registered clinicians.

At no charge for verified clinicians in the UK and the US. One answer without an account, so you can see what it does before you give us anything.

Evidence is clinical decision support for registered healthcare professionals. It does not replace clinical judgement; check primary sources before acting.

Two clinicians reading a medical journal at a desk.

Put a question to it.

Decision support for registered healthcare professionals. It does not replace clinical judgement.

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Evidence, free for verified clinicians.

Every answer synthesised from the primary literature, with the strength of the evidence graded on every source. Used inside the consult, all the way into the letter.

Unlimited graded answers and Deep Consult reports
Search the evidence without leaving your note
Drop the synthesis and its citations into the letter

Reads PubMed, Europe PMC, Cochrane, OpenAlex and NICE.

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