Гар ариутгалын хамгийн том үйлдвэрлэгч хэн бэ?
Дэлхийн мафи- Ротшильдынхон гэж хэн бэ? | Sonin.MN. In April 2002, the Journal of Genetic Counseling released a report which estimated the average risk of birth defects in a child born of first cousins at 1.7–2.8% over an average base risk for non-cousin couples of 3%, or about the same as that of any woman over age 40.[183]