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Schematic representation of adenovirus (AdV) vectors. The E1/E3-deleted replication-deficient AdV vectors are under the regulation of the cytomegalovirus (CMV) early/immediate promoter/enhancer. The AdV vectors include AdVnull without any transgene expression, AdVOVA-expressing transgene ovalbumin (OVA) and AdVHER-2-expressing transgene HER-2/neu. HER, human epidermal growth factor receptor; ITR, inverted terminal repeat.
