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Ultrasound evaluation of fetal nasal bone at 11 to 14 weeks in a consecutive series of 1906 fetuses |
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| Authors: | E Viora B Masturzo G Errante A Sciarrone S Bastonero M Campogrande |
| Institution: | Ultrasound and Prenatal Diagnosis Unit, Sant'Anna Hospital, Turin, Italy |
| Abstract: | |
| Keywords: | prenatal screening Down syndrome nasal bone |