Chromosome abnormalities occur in 1 of 160 live births, the most common being extra chromosomes 21,18 and 13.
The most common extra chromosomes among live births are 21,18 and 13. Chromosome abnormalities occur in 1 of 160 live births.
Chromosome abnormalities occur in 1 of 160 live births. The most common extra chromosomes among live births are 21,18 and 13.
Chromosome abnormalities occur in 1 of 160 live births. The most common extra chromosomes among live births are 21,18 and 13.