Chawanpaiboon, S. . (2007) “Prenatal Serum and Ultrasound Screening for Downûs Syndrome”, Siriraj Medical Journal, 59(6), pp. 341–317. Available at: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246239 (Accessed: 30 April 2024).