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GTD Indications Diagnosis Prenatal GTD Samples Accepted Blood DNA GTD Test Methodology Sequencing GTD Methodology Notes Exome Generic Test name (cms title) Syndromic Hearing Loss GTD Test type Gene Panel GTD Location The Hospital for Sick Children GTD Gene/Platform/Region List COL4A3, COL4A4, COL4A5, EDN3, EDNRB, MITF, NDP, PAX3, SOX10, TCOF1 GTD Category Audiology GTD Disease/Condition Treacher Collins syndrome, Waardenburg syndrome, Norrie syndrome, Alport syndrome