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350: Observed:expected ratios: assessment of nasal bone length for second-trimester Down syndrome screening in a user-friendly fashion
Jennifer McNamara, Harish Sehdev, Alison Cahill, Linda Odibo, George Macones, Anthony OdiboVolume:
204
Année:
2011
Langue:
english
Pages:
1
DOI:
10.1016/j.ajog.2010.10.368
Fichier:
PDF, 236 KB
english, 2011