1. Using CRISPR to inactivate endogenous retroviruses in pigs: an important step toward safe xenotransplantation? 
Michael J. Ross, P. Toby Coates 
Kidney International 
Volume 93, Issue 1, Pages 4-6 (January 2018)
DOI: /j.kint
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2. Figure 1
Image of the first-born porcine endogenous retrovirus (PERV)–inactivated pig.
Reprinted with permission from Niu D, Wei HJ, Lin L, et al. Inactivation of porcine endogenous retrovirus in pigs using CRISPR-Cas9. Science. 2017;357: Copyright © 2017 The American Association for the Advancement of Science.
Kidney International  , 4-6DOI: ( /j.kint )
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