Who iet you have a vasectomy at 21 谁让你在21岁做了精管切除手术？
2.
However , in the testis , l - pgds mrna was weakly expressed in adult rat peritubular cells , l - pgds immunostaing was detected form 40 days , and was intensely seen in adult rat testicular interstitial tissue 仅在出生后70天的睾丸曲细精管腔中有少量l - pgdsmrna表达，而l - pgds蛋白则从40日龄开始在睾丸间质细胞中表达，并在成年时达到最强。
