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Determination of the mesh size of various PEG plug compositions employed to control diffusion of the crystallization agent, obtained by equilibrium swelling theory. Error bars represent standard error of the mean of the mesh size (n = 4 for 10%, n = 9 for 20%, n = 8 for 35%, and n = 8 for 50% PEG composition). Statistical differences are considered when p < 0.05; *p > 0.5 for 20 and 35%.
