Tongsong, T. ., Wanapirak, C. ., & Piyamongkol, W. (1996). Prenatal Sonographic Diagnosis of Cystic Hygroma Colli. Thai Journal of Obstetrics and Gynaecology, 8(3), 189–195. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/257606