Interestingly, the Her2 affinity range of the 7–5 and 14–13 antibody candidates (KD range of ~70–255 nM, Table 2), chosen for SKOV3 versus MCF7 selectivity, is modestly weaker than that proposed by Slaga et al. [14], for anti-Her2/CD3 T-cell dependent bispecific (TDB) antibodies (KD = 23–49 nM), which also rely on avidity binding to promote tumor selectivity. Here, ERBB2 is linked to neoplasm.