正常足月儿肾脏,可见胚胎期肾小叶;
可能为胚胎期基因缺陷致骨骺生长层发育障碍。
Gene defect during embryonic period may interfere the growth of osteoepiphysis.
胚胎期经胎盘“染铅”,是导致子代铅蓄积的重要原因。
Lead transmitted through placenta was an important cause of lead accumulation of offspring.
婴儿现在已经脱离了胚胎阶段进入了胎儿期。
婴儿现在已经脱离了胚胎阶段进入了胎儿期。
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