Chawanpaiboon, S. ., & Kanokpongsakdi, S. . (2020). Preterm Birth at Siriraj Hospital: A 9-Year Period Review (2002-2010). Siriraj Medical Journal, 63(5), 143–146. Retrieved from https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/240995