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Bordignon C, Yu SF, Smith CA, Hantzopoulos P, Ungers GE, Keever CA, O'Reilly RJ, Gilboa E.Bordignon C, et al. Among authors: gilboa e.Proc Natl Acad Sci U S A. 1989 Sep;86(17):6748-52. doi: 10.1073/pnas.86.17.6748.Proc Natl Acad Sci U S A. 1989.PMID: 2549545Free PMC article.
Hantzopoulos PA, Sullenger BA, Ungers G, Gilboa E.Hantzopoulos PA, et al. Among authors: gilboa e.Proc Natl Acad Sci U S A. 1989 May;86(10):3519-23. doi: 10.1073/pnas.86.10.3519.Proc Natl Acad Sci U S A. 1989.PMID: 2542934Free PMC article.