Parental age and birth order in the aetiology of some sex chromosome aneuploidies.
D000328:Adult; D000782:Aneuploidy; D001722:Birth Order; D005260:Female; D006801:Humans; D008297:Male; D008423:Maternal Age; D008954:Models, Biological; D010331:Paternal Age; D012729:Sex Chromosome Aberrations / Q000209:etiology*; D013223:Statistics as Topic