CSPG4 and neoplasm: In the three remaining mice of this group, tumor growth resumed after 50 days following treatment (tumor size at end of study +/- SEM per group in mm3: PBS 836 ± 31, anti-CSPG4-(PDD) 155 ± 85, isotype-(PDD) 834 ± 38) (Figure 6B, left panel).