Assertion: teratogen | /r/HasProperty | exposure
Facets:
value: in pregnancy
type: TEMPORAL
Source sentences:
text: A teratogen is an exposure (substance, organism or process) in pregnancy that has a harmful effect on the fetus.
text: An example from the Children’s Hospital of Wisconsin states that a teratogen that “has the potential to interfere with the closure of the neural tube… exposure to the teratogen must occur in the first 3.5 to 4.5 weeks of the pregnancy, since this is when the neural tube is closing.