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. 2018 Sep 14;13(9):e0203865. doi: 10.1371/journal.pone.0203865

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© 2018 Gleason et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 2 — Histograms and Gaussian distribution functions of feature fi = height for all CPD cases (shaded histogram bars and solid line NCPD) and all uncomplicated vaginal delivery cases (blue histogram bars and dashed line NVD) and $r_{i} = (N_{i}^{C P D} / N_{i}^{V D})$ from Eq (2)₂ is shown in the dotted line. Note that the histograms and distribution functions refer to the vertical axis to the left and ri refers to the vertical axis to the right.