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Pandey RB, Anderson KL, Farmer BL.Pandey RB, et al.Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Jun;75(6 Pt 1):061913. doi: 10.1103/PhysRevE.75.061913. Epub 2007 Jun 28.Phys Rev E Stat Nonlin Soft Matter Phys. 2007.PMID: 17677306