G-banded chromosomes of 3,415 liveborn infants.
D002681:China; D002869:Chromosome Aberrations; D002871:Chromosome Banding / Q000379:methods; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007621:Karyotyping; D008297:Male; D014314:Trisomy