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Quintero FJ, Ohta M, Shi H, Zhu JK, Pardo JM.Quintero FJ, et al.Proc Natl Acad Sci U S A. 2002 Jun 25;99(13):9061-6. doi: 10.1073/pnas.132092099. Epub 2002 Jun 17.Proc Natl Acad Sci U S A. 2002.PMID: 12070350Free PMC article.