18 Xia Xia XY XY Zhang Zhang C C Li Li TF TF Wu Wu QY QY Li Li N N Li Li WW WW A duplication upstream of SOX9 was not positively correlated with the SRY-negative 46,XX testicular disorder of sex development: A case report and literature review A duplication upstream of SOX9 was not positively correlated with the SRY-negative 46,XX testicular disorder of sex development: A case report and literature review Mol Med Rep Mol Med Rep 2015 2015 12 12 5659 5659 5664 5664 10.3892/mmr.2015.4202 10.3892/mmr.2015.4202 26260363 26260363. Here, SOX9 is linked to testicular disorder.