title: A statistical segregation analysis of (21q22q)-translocations.
mesh_terms: D002869:Chromosome Aberrations; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007621:Karyotyping; D008297:Male; D010641:Phenotype; D012723:Sex; D013223:Statistics as Topic