Original ResearchPublished 7 October 2026Duplication of the SOX3 gene in an SRY -negative boy with a 46,XX karyotype: a case report and a review of the literatureJúlia Martinková · Hana Řezáčová · Alena Šantavá · Jana Drábová · Miroslav Štolfa · Radek Vodička · Jiřina Zapletalová · Miroslava Balaščaková · Anna KřepelováFrontiers in Geneticsdoi 10.3389/fgene.2026.1861766