When you ask PelvIQ to research a question, it searches PubMed (the US National Library of Medicine's index of biomedical journals) — your main question and up to two related ones — plus Europe PMC for extra coverage. Guidelines, systematic reviews and randomized trials are searched first, then other study types. Up to 12 papers per search are read. It also checks each paper against Crossref for retractions and corrections, and lists related studies registered on ClinicalTrials.gov.
Full papers are read only when their licence allows AI processing (open licences such as CC BY) — often a minority. Every other paper is read from its abstract, and each result says which. It doesn't search guideline websites or Cochrane's full reviews (their terms don't allow it) or use preprints, so a search can miss relevant work. Coverage is broad, not complete.
The papers are then handled by a team of two AI agents. The researcher reads them, notes exactly what each study tested, sets aside papers that aren't really on the question, and drafts the answer. A separate reviewer then checks that no claim goes further than the studies — rewording or adding a caveat where needed, never removing a claim or making it sound more certain. Each result shows what the team did.