Partial 7q11.23 deletions further implicate <i>GTF2I</i> and <i>GTF2IRD1</i> as the main genes responsible for the Williams–Beuren syndrome neurocognitive profile

Along with previously reported cases, clinical-molecular correlations in these two families further confirm that the functional hemizygosity for the GTF2I and GTF2IRD1 genes is the main cause of the neurocognitive profile and some aspects of the gestalt phenotype of WBS.