“…We acknowledge that when a 2D image is not obtained, a 3D image might also be difficult to obtain. However, several authors reported that trained or specialized sonographers have an increased ability to diagnose cleft lips and their severity using 3DUS and need significantly shorter time periods to interpret findings [10,11,12,13,14,15,16,17,18]. Despite these benefits, the question of whether or not inexperienced sonographers can obtain similar results compared with experienced operators has never been studied.…”