Assertion: amniocentesis | /r/CapableOf | check lung maturity
Facets:
Source sentences:
text: It is standard practice to order an amnio to check lung maturity if delivery is contemplated before 37-38 weeks, and generally regarded as unnecessary after 39 weeks.
text: At 38 weeks, many doctors do not "bother" with an amnio to check lung maturity, considering it unnecessary at that point.