350: Observed:expected ratios: assessment of nasal bone length for second-trimester Down syndrome screening in a user-friendly fashion

✍ Scribed by Jennifer McNamara; Harish Sehdev; Alison Cahill; Linda Odibo; George Macones; Anthony Odibo

• Book ID: 113437102
• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 236 KB
• Volume: 204
• Category: Article
• ISSN: 1097-6868
• DOI: 10.1016/j.ajog.2010.10.368