Tansathit, T., Tongsong, T. and Choavisitsaree, S. (1992) “Mid-Trimester Termination of 51 Intact Pregnancies by Condom-Balloon Technique”, Thai Journal of Obstetrics and Gynaecology. Bangkok, Thailand, 4(2), pp. 105–110. available at: https://he02.tci-thaijo.org/index.php/tjog/article/view/257832 (accessed: 28 September 2026).