> **Formal notice:** No citable sources or evidence contexts could be retrieved in this session from the available research tools, which prevents preparation of a properly PMID-cited report.
>
> Accordingly, only an **unsourced scaffold** and a **retrieval plan** can be provided in this run; a fully cited disease report will require successful source retrieval in a follow-up session.


*Blockquote: This notice explains that source retrieval failed in the current session, so a PMID-cited report cannot be produced. It clarifies that only an unsourced scaffold and a retrieval plan are available as fallback deliverables.*