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OC052: Ultrasound at 20–22 weeks of pregnancy increases the rate of detection of Down syndrome above that of combined first-trimester screening alone
P. Calda, H. Belosovicova-Viskova, H. Valtrova, K. Svabik, S. Manasova, Z. Zizka, M. Brestak, K. NekovarovaVolume:
32
Year:
2008
Language:
english
Pages:
1
DOI:
10.1002/uog.5460
File:
PDF, 51 KB
english, 2008