**Figure 4.** **TfR1 expression in BC patients based on different pathological parameters was assessed using bc-GenExMiner v4.5.** Box plots are shown for (**A**) SBR grade (SBR1, *n* = 931; SBR2, *n* = 3063; and SBR3, *n* = 3079), (**B**) NPI index (NPI1, *n* = 1255; NPI2, *n* = 2167; and NPI3, *n* = 705), (**C**) ER status (ER+, *n* = 6597; ER-, *n* = 2396), (**D**) PR status (PR+, *n* = 3224; PR-, *n* = 2509), (**E**) HER-2 status (HER2+, *n* = 683; HER2-, *n* = 4120), (**F**) basal-like status (non-basal-like, *n* = 7489; basal-like, *n* = 1954), (**G**) TNBC status (non-TNBC, *n* = 7084; TNBC, *n* = 848), (**H**) TP53 status (wild type, *n* = 638; mutated, *n* = 284), and (**I**) Sorlie subtypes (basal-like, *n* = 1453; luminal A, *n* = 2934; luminal B, *n* = 1142; HER2-E, *n* = 1182; and normal breast-like, *n* = 1313). ^{*}< 0.05, ^{**}< 0.01, ^{***}< 0.001.