Assertion: oxytocin | /r/CapableOf | start uterine contractions
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Source sentences:
text: Laboratory-made oxytocin, called Pitocin, has been used for many years to help start or strengthen uterine contractions during labor or to reduce bleeding after delivery.
text: Once the cervix is ripe and your baby's close to making a debut, oxytocin starts up uterine contractions.