Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40748-017-0068-7/MediaObjects/40748_2017_68_Fig2_HTML.gif)
The frequency of occurrence in individual fetuses who had nuchal cord indentified during the four evaluations (Courtesy from Elsevier, with permission)
The frequency of occurrence in individual fetuses who had nuchal cord indentified during the four evaluations (Courtesy from Elsevier, with permission)