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Changes of IgG glycosylation features (sialylation, galactosylation, and fucosylation) from the reference storage condition—–80 °C for 2 weeks—to the most extreme accelerated storage stability condition—50 °C for 2 weeks—of serum and plasma for the three donors at each IgG subclass (IgG1, IgG2/3, and IgG4). The significant findings for donor 1 are also observed as trends for donors 2 and 3.
