PDF(191 KB)
Prenatal screening status of Down syndromes in 50420 cases on middle period pregnancy and influence factors of this service
Pan Su-zhao, Song Chun-xian, Li Ling-zhu.
Practical Preventive Medicine ›› 2015, Vol. 22 ›› Issue (1) : 92-93.
PDF(191 KB)

PDF(191 KB)
Prenatal screening status of Down syndromes in 50420 cases on middle period pregnancy and influence factors of this service
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