求片cell，比较老，谢谢啦

殆死悲爱

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http://www.sciencedirect.com/science/article/pii/0092867493906446! x: l: J7 P: P$ M( H/ ~" w
Independent control of immunoglobulin switch recombination at individual switch regions evidenced through Cre-loxP-mediated gene targeting

殆死悲爱

回复 damaoshu 的帖子0 v2 O/ e! }9 ~( h/ y/ F% m# V, _* r# `

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damaoshu

Independent control of immunoglobulin switch recombination at individual switch regions evidenced through Cre-loxP-mediated gene targeting