ERBB2 and breast cancer: Moreover, if patients with BC have a TVDTPT from 10 to 135 days (rapid growth rate of the PT—group V with subtype V of BC—triple-negative tumors = HR(−)/HER2(−)), they have a high risk of death within five years (rapid (TVDTMTS = 10–135 days) growth rate of sdMTSs) (Figure 7 and Figure 8).