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A Case of Bisatellited-Isodicentric Supernumerary Chromosome 15
ESAC (extra structurally abnormal chromosome) bisatellite isodicentric marker chromosome
2009/6/29
The frequency of extra structurally abnormal chromosomes (ESACs) is 0.2/1000 in live births and 0.6/1000 in midtrimester amniocentesis. The frequency is much higher (3.27/1000) in the mentally retarde...