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

✍ Scribed by T. M. Reynolds; F. Dunstan; B. Nix; K. Williams; J. Crossley; S. Holding; D. Krantz; D. Wright; I. Bray; K. Spencer

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 70 KB
• Volume: 18
• Category: Article
• ISSN: 0197-3851
• DOI: 10.1002/(sici)1097-0223(199805)18:5<511::aid-pd389>3.0.co;2-#