Kerdarunsuksri, Attapol. “Role of Sonographic Findings in the Diagnosis of Retained Products of Conception”. Vajira Medical Journal : Journal of Urban Medicine 53, no. 3 (September 28, 2011): 219–231. accessed April 22, 2026. https://he02.tci-thaijo.org/index.php/VMED/article/view/409.