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Welcsh PL, Lee MK, Gonzalez-Hernandez RM, Black DJ, Mahadevappa M, Swisher EM, Warrington JA, King MC.Welcsh PL, et al. Among authors: swisher em.Proc Natl Acad Sci U S A. 2002 May 28;99(11):7560-5. doi: 10.1073/pnas.062181799.Proc Natl Acad Sci U S A. 2002.PMID: 12032322Free PMC article.