Down's syndrome screening in twin pregnancies

This publication has 3 references indexed in Scilit:

• Four‐marker serum screening for Down's syndrome
  Prenatal Diagnosis, 1994
• Maternal serum free β‐human chorionic gonadotrophin levels in twin pregnancies: Implications for screening for down's syndrome
  Prenatal Diagnosis, 1994
• The value of performing a dating scan on all women in antenatal screening for Down's syndrome and neural tube defects
  Ultrasound in Obstetrics & Gynecology, 1993