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Berger EA, Clouse KA, Chaudhary VK, Chakrabarti S, FitzGerald DJ, Pastan I, Moss B.Berger EA, et al. Among authors: chakrabarti s.Proc Natl Acad Sci U S A. 1989 Dec;86(23):9539-43. doi: 10.1073/pnas.86.23.9539.Proc Natl Acad Sci U S A. 1989.PMID: 2480605Free PMC article.