> No citable documents could be retrieved in this session: literature searches returned no retrievable papers, clinical-trial searches returned no trials, patent searches returned no patents, and OpenTargets queries failed after retries.
>
> Because no source documents produced any citable contexts, a comprehensive, well-cited report on EDN3/EDNRB Waardenburg–Shah syndrome cannot be generated in this run.
>
> To enable a fully cited report, please provide one or more of the following retrievable inputs:
> - PMIDs for key EDN3/EDNRB Waardenburg–Shah papers
> - DOI links to relevant articles
> - PDFs of primary papers or reviews
> - OMIM disease or gene entry links
> - Orphanet disease page links
> - GeneReviews chapter or stable link


*Blockquote: This blockquote explains why a fully cited report could not be produced in the current session and lists the minimum source inputs needed to enable a proper evidence-backed follow-up report.*