```text
1) GeneReviews
   - Search: "Waardenburg syndrome PAX3 GeneReviews"
   - Open the Waardenburg syndrome chapter; extract inheritance, diagnostic criteria, management, and differential diagnosis.

2) OMIM
   - Search: "PAX3 Waardenburg syndrome type 1 OMIM"
   - Search: "PAX3 Waardenburg syndrome type 3 OMIM"
   - Capture phenotype entries, allelic variants, and phenotype-series links.

3) Orphanet
   - Search: "Orphanet Waardenburg syndrome type 1 PAX3"
   - Extract epidemiology, orphan designation/classification, and cross-references.

4) PubMed (2023-2024 priority)
   - Query: (PAX3[Title/Abstract] AND Waardenburg[Title/Abstract]) AND (2023:2024[pdat])
   - Query: ("Waardenburg syndrome type 1"[Title/Abstract] AND PAX3[Title/Abstract]) AND (2023:2024[pdat])
   - Query: ("Klein-Waardenburg"[Title/Abstract] OR "Waardenburg syndrome type 3"[Title/Abstract]) AND PAX3[Title/Abstract]
   - Query: (PAX3[Title/Abstract] AND Waardenburg[Title/Abstract] AND (genotype[Title/Abstract] OR phenotype[Title/Abstract] OR review[Publication Type]))
   - Sort by: Best Match, then Most Recent.

5) ClinVar
   - Search gene: PAX3
   - Add condition filter: "Waardenburg syndrome"
   - Review classifications: Pathogenic/Likely pathogenic/VUS
   - Export or record: HGVS, molecular consequence, review status, condition name.

6) gnomAD
   - Search: PAX3
   - For each ClinVar variant, check population allele frequency and constraint context.

7) HPO
   - Search: "Waardenburg syndrome"
   - Record phenotype terms relevant to WS1/WS3: hearing loss, dystopia canthorum, heterochromia iridis, white forelock, limb anomalies.

8) DECIPHER / structural variation
   - Search: PAX3
   - Check for CNVs or rearrangements involving PAX3 with Waardenburg-like phenotypes.

9) Model organism follow-up
   - Search: "MGI Pax3" and "ZFIN pax3a pax3b"
   - Extract neural crest / melanocyte / hearing-related phenotypes.

10) Final synthesis checklist
   - Verify WS1/WS3 disease labels and identifiers
   - Summarize inheritance and expressivity
   - Tabulate PAX3 variant classes and evidence
   - Highlight 2023-2024 studies first, then landmark older papers
```


*Code_block: This code block provides a short, actionable workflow to gather authoritative disease resources and recent literature for PAX3-associated Waardenburg syndrome. It is useful as a repeatable search plan when direct tool-based citation retrieval is unavailable.*