CHAWANPAIBOON, S. Prenatal Serum and Ultrasound Screening for Downûs Syndrome. Siriraj Medical Journal, [S. l.], v. 59, n. 6, p. 341–317, 2007. Disponível em: https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246239. Acesso em: 1 oct. 2026.