Sooklim, Ratchadawan, Kanpirom Krajangpong, and Wasana Cheawchusak. “The Prevalence and Pregnancy Outcomes of Short Cervix in Low Risk Singleton Pregnancy from Universal Cervical Length Screening”. Vajira Medical Journal : Journal of Urban Medicine 64, no. 1 (February 28, 2020): 23–32. Accessed April 20, 2024. https://he02.tci-thaijo.org/index.php/VMED/article/view/242562.