Assertion: prolactin's level | /r/CapableOf | prepare mammary gland
Facets:
value: at the end of gestation
type: TEMPORAL
value: for lactation
type: PURPOSE
Source sentences:
text: The increasing blood concentrations of estrogen during late pregnancy appear responsible for the elevated levels of prolactin that are necessary to prepare the mammary gland for lactation at the end of gestation.