We assessed TRA2B expression in benign tissues (Fig. 9A–9C), borderline ovarian tumor tissues (Fig. 9D–9F), high-grade serous ovarian carcinoma (HSGOC) tissues (Fig. 9G–9I) and peritoneal metastatic tissue (Fig. 9J–9L). The gene discussed is TRA2B; the disease is ovarian serous carcinoma.