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<xml><bibliography><APA>Nattaporn Poopaibool และ Sommart Bumrungphuet; Nathpong Israngura Na Ayudhya. (2018) Estimating the Date of Confinement: A 3-year retrospective study in Ramathibodi Hospital. &lt;i&gt;Thai Journal of Obstetrics and Gynaecology&lt;/i&gt;, &lt;i&gt;26&lt;/i&gt;(3), 166-174.</APA><Chicago>Nattaporn Poopaibool และ Sommart Bumrungphuet; Nathpong Israngura Na Ayudhya. "Estimating the Date of Confinement: A 3-year retrospective study in Ramathibodi Hospital". Thai Journal of Obstetrics and Gynaecology  26 (2018):166-174.</Chicago><MLA>Nattaporn Poopaibool และ Sommart Bumrungphuet; Nathpong Israngura Na Ayudhya. Estimating the Date of Confinement: A 3-year retrospective study in Ramathibodi Hospital. PIMDEE Co. Ltd.:ม.ป.ท. 2018.</MLA></bibliography></xml>
