Uttavichai, Chamnong, Opas Sreshthaputra, Rungaroon Sreshthaputra, Teraporn Vutyavanich, Supreeya Wongtra-Ngan, and Prayoth Jongusuk. 2017. “Echovist-200 as an Ultrasound Contrast Medium for Hysterosalpingocontrast Sonography”. Thai Journal of Obstetrics and Gynaecology 13 (1). Bangkok, Thailand:33-37. https://he02.tci-thaijo.org/index.php/tjog/article/view/99721.