Research on the fetus using Doppler ultrasound in the first trimester: guiding ethical considerations

被引:10
作者
Chervenak, FA
McCullough, LB
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D O I
10.1046/j.1469-0705.1999.14030161.x
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
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页码:161 / 161
页数:1
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