Sugawara, T., K. Honke, A. Makita, and S. Fujimoto. “Elevation of Serum Steroid Sulfatase Level in Gynecologic cancers”. Thai Journal of Obstetrics and Gynaecology, vol. 7, no. 1, Jan. 1995, pp. 33-40, https://he02.tci-thaijo.org/index.php/tjog/article/view/257764.