Fig. 1From: Breast cancer in Iraq is associated with a unimodally distributed predominance of luminal type B over luminal type A surrogates from young to old ageKernal density plots for the four major ER and HER2 subtypesLegend: ER+/HER2+ tumors peak at a significantly earlier age than ER+/HER2- tumors (P < 0.01). There is no significant difference in the age distribution of other subtypes (ANOVA, P > 0.05)Back to article page