求助:PNAS文献1篇 7 e* C( S) S# m2 a4 Y9 _( f& i文章标题:Seamless modification of wild-type induced pluripotent stem cells to the natural CCR5Δ32 mutation confers resistance to HIV infection. J$ f5 ^) y6 W! e. j9 _全文链接:Proc Natl Acad Sci U S A. 2014 Jun 9. pii: 201407473.( i% K9 H: i3 m' m& A x