求助2篇文献，多谢！

sunyucheng

Cellular and molecular mechanisms mediating the effects of polychlorinated biphenyls on oocyte developmental competence in cattle4 ]2 i' R4 ]0 N& M2 Q0 \2 Y
http://www.ncbi.nlm.nih.gov/pubmed/11746964
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damaoshu

Cellular and molecular mechanisms mediating the effect of polychlorinated biphenyls on oocyte in vitro maturation

damaoshu

Cellular and molecular mechanisms mediating the effects of polychlorinated biphenyls on oocyte developmental competence in cattle