Conclusions Getting the villi of 45-55 days pregnancy by uterine curettage, we can obtain the chorial trophcytes by trypsin or DNA enzyme digest.
结论取人妊娠45～55天刮宫术
毛，甲胰蛋白酶消化可得到毛滋养层细胞。
(毛)膜
Conclusions Getting the villi of 45-55 days pregnancy by uterine curettage, we can obtain the chorial trophcytes by trypsin or DNA enzyme digest.
结论取人妊娠45～55天刮宫术毛，甲胰蛋白酶消化可得到毛滋养层细胞。
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