Trisomy 21 mosaicism and maternal age effect.
D000293:Adolescent; D000328:Adult; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008875:Middle Aged; D009030:Mosaicism; D011336:Probability