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Cai L, Altman MS, Granato E, Ala-Nissila T, Ying SC, Xiao X.Cai L, et al. Among authors: granato e.Phys Rev Lett. 2002 Jun 3;88(22):226105. doi: 10.1103/PhysRevLett.88.226105. Epub 2002 May 20.Phys Rev Lett. 2002.PMID: 12059435Free article.