Mouth Opening 27.5 Weeks (IMAGE)
Caption
The ultrasound image shows mouth opening at 27.5 weeks gestation.
Credit
Citation: Reissland N, Francis B, Mason J (2012) Development of Fetal Yawn Compared with Non-Yawn Mouth Openings from 24–36 Weeks Gestation. <i>PLoS ONE 7</i>(11): e50569. doi:10.1371/journal.pone.0050569
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