Oranratnachai, Apichart, Opas Sreshthaputra, Chaivit Wanaroj, Chamnong Uttavichai, and Warunya Ittipunkul. “In Vitro Fertilization of Human In vitro Matured Oocytes : Report of the First 22 Cases in Thailand”. Thai Journal of Obstetrics and Gynaecology 6, no. 2 (July 1, 1994): 71–78. accessed September 28, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/257775.