> **Deliverable status for EDN3/EDNRB Waardenburg–Shah report**
>
> Retrieval in this run produced **zero papers and zero citable context IDs**, so no source-grounded disease claims could be assembled.
>
> `open_targets_search` also **failed after retries**, leaving no disease–target association evidence available.
>
> Final answer submission is currently **blocked because the system requires citable contexts** to support PMIDs, quotes, URLs, and publication dates.
>
> Key artifacts available to move forward are the **retrieval audit**, the **report scaffold**, the **reproducible query list**, and the **minimum source set** needed for a successful follow-up run.
>
> To proceed, the next run should ingest retrievable **OMIM/Orphanet/GeneReviews sources** plus **PubMed papers or PDFs/DOIs** for EDN3/EDNRB-associated Waardenburg syndrome type IV.


*Blockquote: This blockquote summarizes why a cited EDN3/EDNRB Waardenburg–Shah report could not be completed in the current run. It also identifies the substitute artifacts already prepared and the minimum source inputs needed for a successful follow-up.*