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Cell Stem Cell
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CRISPR-Cas9-Mediated Genetic Screening in Mice with Haploid Embryonic Stem Cells Carrying a Guide RNA Library

      (Cell Stem Cell 17, 221–232; August 6, 2015)
      In the version of our paper originally published online on July 9, 2015, under the Experimental Procedures subsection “Derivation of AG-haESCs,” we included the line, “Each embryo was transferred into one well of a 96-well plate seeded with ICR embryonic fibroblast feeders in ESC medium supplemented with 20% knockout serum replacement, 1,500 U/ml LIF, 3 M CHIR99021, and 1 M PD0325901.” However, the concentrations of CHIR99021 and PD0325901 should have been written as 3 μM CHIR99021 and 1 μM PD0325901, and both the online and print versions of the article now reflect this change. We apologize for any confusion this may have caused.

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