> **EDN3/EDNRB Waardenburg–Shah report not generated**
>
> No citable source contexts were retrieved in this run, so the requested well-cited report with PMIDs, URLs, publication dates, and abstract quotes cannot be produced in this session.
>
> Inputs needed to run successfully next time:
> - PMIDs for key EDN3/EDNRB Waardenburg–Shah or Waardenburg syndrome type IV papers
> - DOI links to relevant primary articles or reviews
> - PDFs of core papers if direct retrieval remains unavailable
> - OMIM disease and gene entry links
> - Orphanet disease page links
> - GeneReviews chapter or stable link
> - Optional supporting sources: ClinVar variant records, gnomAD frequency pages, and MGI/IMPC model-organism pages


*Blockquote: This technical note documents that no citable contexts were available in the run, preventing generation of the requested fully cited EDN3/EDNRB Waardenburg–Shah report. It also lists the minimum source inputs needed to enable a successful follow-up run.*