Prenatal Mouth Movements: Can We Identify Co-Ordinated Fetal Mouth and LIP Actions Necessary for Feeding?

<table>Correlation between the number of lip pucker (AU 18) and gestational age between weeks 24 and 36. Lip puckering frequency is stable as a function of age. </table>

International Journal of Pediatrics

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Figure 4

Figure 4: Prenatal Mouth Movements: Can We Identify Co-Ordinated Fetal Mouth and LIP Actions Necessary for Feeding? 