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Table 1 About the clear diagnostic view, which is an image that has an enface orientation and shows details of the face

From: Frontal tangential coronal view two-dimensional ultrasonography in assessment of fetal face [mouth and nose] in comparison with four-dimensional ultrasonography

  Clear diagnostic view Otherwise no
2D 191 29
4D 170 50
  1. χ2 = 6.804, P value = 0.009 (S)