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Perez M, Craven RC, de la Torre JC.Perez M, et al. Among authors: craven rc.Proc Natl Acad Sci U S A. 2003 Oct 28;100(22):12978-83. doi: 10.1073/pnas.2133782100. Epub 2003 Oct 16.Proc Natl Acad Sci U S A. 2003.PMID: 14563923Free PMC article.
Pan W, Craven RC, Qiu Q, Wilson CB, Wills JW, Golovine S, Wang JF.Pan W, et al. Among authors: craven rc.Proc Natl Acad Sci U S A. 1995 Dec 5;92(25):11509-13. doi: 10.1073/pnas.92.25.11509.Proc Natl Acad Sci U S A. 1995.PMID: 8524793Free PMC article.