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Response to isoform-specific treatment in tumors that preferentially secrete various VEGF isoform(s). The fold-change in free VEGF concentration in isoform-specific tumors following targeting all isoforms simultaneously (light gray), VEGF121 (dark gray), or VEGF165 (black). From top to bottom: normal tissue (subscript N), blood (subscript B), and tumor (subscript T)
