Response to: Wald, N.J., Hackshaw, A.K. (1997). Combining ultrasound and biochemistry in first-trimester screening for Down's syndrome, Prenat. Diagn., 17, 821-829

Prenat Diagn. 1998 May;18(5):511-9.
No abstract available

Publication types

  • Letter
  • Comment

MeSH terms

  • Chorionic Gonadotropin, beta Subunit, Human / blood
  • Down Syndrome / diagnosis*
  • Female
  • Humans
  • Neck / diagnostic imaging
  • Pregnancy
  • Pregnancy Trimester, First
  • Pregnancy-Associated Plasma Protein-A / analysis
  • Prenatal Diagnosis / methods*
  • Ultrasonography

Substances

  • Chorionic Gonadotropin, beta Subunit, Human
  • Pregnancy-Associated Plasma Protein-A