Suppada Chattrakoonphong และ Kittipong Kongsomboon; Tharangrut Hanprasertpong. (2025) Rate of Re-dating after Determination of Gestational Age using Ultrasonography in Clinically Reliable and Clinically Non-reliable Pregnant Women during the First Trimester. <i>Thai Journal of Obstetrics and Gynaecology</i>, <i>33</i>(2), 161-170.Suppada Chattrakoonphong และ Kittipong Kongsomboon; Tharangrut Hanprasertpong. "Rate of Re-dating after Determination of Gestational Age using Ultrasonography in Clinically Reliable and Clinically Non-reliable Pregnant Women during the First Trimester". Thai Journal of Obstetrics and Gynaecology 33 (2025):161-170.Suppada Chattrakoonphong และ Kittipong Kongsomboon; Tharangrut Hanprasertpong. Rate of Re-dating after Determination of Gestational Age using Ultrasonography in Clinically Reliable and Clinically Non-reliable Pregnant Women during the First Trimester. PIMDEE Co. Ltd.:ม.ป.ท. 2025.