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Clinical value of prenatal ultrasound screening for fetal malformation due to chromosomal abnormalities |
LIU Yan-hong, SONG Hui-ling, LIU Yun-li, JIN Zheng-ping |
Department of Ultrasound, the Maternal and Child Health Hospital of Zhuhai, Zhuhai Guangdong 519000, China |
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Received: 27 October 2008
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