Quader SA, Islam MS, Islam MM, Hossain MZ. Ultrasonographic evaluation of fetal sacral length and correlation with gestational age. Update Dent. Coll. j [Internet]. 2016 Aug. 13 [cited 2024 Jul. 18];6(1):8-14. Available from: https://banglajol.info/index.php/UpDCJ/article/view/29214