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licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Transfection of COS-7 cells with samples of DEAE-dextran and DEAE-dextran-MMA graft copolymer having a grafting rate of 130% and including 0.075 μg of DNA. Maximum luciferase expression within each experiment was set at 100%.