Uerpairojkit, B., Taneepanichskul, S., Tannirandorn, Y., Tanawattanacharoen, S., Manotaya, S., & Charoenvidhya, D. (1998). Sonographic Diagnosis of Fetal Facial Cleft : How Should We Approach?. Thai Journal of Obstetrics and Gynaecology, 10(1), 15–19. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/257111