胚胎移植前遗传学诊断（PGD）起源于90年代初，是怀孕的夫妇防止胎儿受到异常基因或染色体影响的一种有效措施。
PGD was first performed in the early 1990's as a way for couples to prevent the pregnancy of a child with genetic disease.
胚胎移植前遗传学诊断（PGD）起源于90年代初，是怀孕的夫妇防止胎儿受到异常基因或染色体影响的一种有效措施。
PGD was first performed in the early 1990's as a way for couples to prevent the pregnancy of a child with genetic disease.
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