Saluckpetch S, Puntachai P. Association between Anemia in Pregnancy and Preterm Birth at Sunpasitthiprasong Hospital. Thai J Obstet Gynaecol [internet]. 2020 Jul. 1 [cited 2026 Sep. 29];28(3):142-51. available from: https://he02.tci-thaijo.org/index.php/tjog/article/view/148257