Which sources can I use in Atlas?
Use the source availability shown for your account and landscape. You can include sources the platform has activated. An unavailable source or separately displayed preview is not automatically eligible for comparison or model analysis.
Does an empty result mean there is no evidence?
It means no records were returned only if that source search completed successfully. Search terms, coverage, partial execution, and unavailable sources can all affect what you see. Missing evidence is not a negative scientific finding.
When does Atlas use a model?
Source retrieval and evidence preparation are separate from the model-assisted research action. Review the selected scope before starting research. Its answer analyzes eligible selected evidence and does not establish an exhaustive search.
Can I use Atlas to choose a treatment or rank efficacy?
Atlas is a comparator-surfacing and evidence-inspection tool. It does not diagnose, recommend treatment, declare benefit-risk, or justify efficacy rankings across incomparable studies.