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Effect of multiple freeze-thaw cycles on cGMP TCMC-trastuzumab. Vials of cGMP TCMC-trastuzumab were subjected to one, two or three cycles of freezing at −80 °C and thawing. The samples were then assayed. The SDS-PAGE represents one of the methods assessing integrity of the cGMP TCMC-trastuzumab under non-reduced and reduced conditions.
