- Review
Prenatal Screening for Chromosomal Defects
- Veronika Frisova
Chromosomal defects are a significant cause of perinatal death and childhood disability, occurring in 3.6–6.0 per 1000 births in unscreened populations. Common chromosomal defects include trisomy 21, 18, and 13, triploidy, and sex chromosome ab...

