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Peng A, Straubinger RM, Balu-Iyer SV.Peng A, et al.AAPS J. 2010 Sep;12(3):473-81. doi: 10.1208/s12248-010-9207-z. Epub 2010 Jun 2.AAPS J. 2010.PMID: 20517659Free PMC article.