title: A boy with trisomic Down's syndrome and a familial 5-?7 translocation, 47,XY,+21, t (5q-; ?7p+).
mesh_terms: D002675:Child, Preschool; D002869:Chromosome Aberrations; D002875:Chromosomes; D002900:Chromosomes, Human, 1-3; D002904:Chromosomes, Human, 21-22 and Y; D002905:Chromosomes, Human, 4-5; D002906:Chromosomes, Human, 6-12 and X; D004314:Down Syndrome / Q000235:genetics*; D006801:Humans; D007621:Karyotyping; D008297:Male; D014314:Trisomy