产前超声筛查染色体异常所致胎儿畸形的临床价值

刘彦红;宋惠玲;刘耘利;金正平

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

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