求助一篇早年的文献，谢谢！

zsutx2005

  |: d) P3 l+ g7 g9 iCharacterization and expression of recombination activating genes (RAG-1 and RAG-2) in Xenopus laevis. / V5 @- B, d5 D: a8 D- I5 |: v

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! x9 ^2 D. T' B+ F! m, p0 a6 O2 U. U4 eJ Immunol 1993 151:3100-10! w! M% Z7 Z, c! }

  L8 X3 m0 c6 U7 _http://www.jimmunol.org/content/151/6/3100.abstract
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