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Table 4 Distribution of sample types used in this study

From: Clinical experience with multiplex ligation-dependent probe amplification for microdeletion syndromes in prenatal diagnosis: 7522 pregnant Korean women

Tissue Number of samples
Chorionic villus sampling* 4723
Amniotic fluid* 2796
Fetal blood* 22
Peripheral blood 36
Product of conception 30
Total 7607
  1. [*prenatal samples: The mean gestational age at the time of test was 13.2 weeks for Chorionic villus sampling, 17.2 weeks for amniotic fluid, and 22.3 weeks for fetal blood