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Citovsky V, Wong ML, Zambryski P.Citovsky V, et al.Proc Natl Acad Sci U S A. 1989 Feb;86(4):1193-7. doi: 10.1073/pnas.86.4.1193.Proc Natl Acad Sci U S A. 1989.PMID: 2919168Free PMC article.
Citovsky V, Warnick D, Zambryski P.Citovsky V, et al.Proc Natl Acad Sci U S A. 1994 Apr 12;91(8):3210-4. doi: 10.1073/pnas.91.8.3210.Proc Natl Acad Sci U S A. 1994.PMID: 8159726Free PMC article.
Zupan JR, Citovsky V, Zambryski P.Zupan JR, et al. Among authors: citovsky v.Proc Natl Acad Sci U S A. 1996 Mar 19;93(6):2392-7. doi: 10.1073/pnas.93.6.2392.Proc Natl Acad Sci U S A. 1996.PMID: 8637884Free PMC article.