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Impact of ethylene oxide as well as beta, rand, and gamma irradiation sterilization methods on the (a) Mn, (b) Mw, and (c) polydispersity index of PLGA 85:15; All data are expressed as mean ± SD (n = 3) and were analyzed using Anova one-way test and compared to the control * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.
