Assertion: stepmother's child | /r/DistinctFrom | 30 years of age
Facets:
Source sentences:
text: And a study in the Journal of Genetic Counseling in 2002 showed that children of first-cousins have only about a 2-3% higher risk of birth defects than normal—a number comparable to the defects in a child born of a 41-year-old woman as opposed to 30 years of age.