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Heimbrook DC, Stirdivant SM, Ahern JD, Balishin NL, Patrick DR, Edwards GM, Defeo-Jones D, FitzGerald DJ, Pastan I, Oliff A.Heimbrook DC, et al.Proc Natl Acad Sci U S A. 1990 Jun;87(12):4697-701. doi: 10.1073/pnas.87.12.4697.Proc Natl Acad Sci U S A. 1990.PMID: 2352944Free PMC article.