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Gazdar AF, Chick WL, Oie HK, Sims HL, King DL, Weir GC, Lauris V.Gazdar AF, et al.Proc Natl Acad Sci U S A. 1980 Jun;77(6):3519-23. doi: 10.1073/pnas.77.6.3519.Proc Natl Acad Sci U S A. 1980.PMID: 6106192Free PMC article.