Fig. 2From: 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 of ER+ tumors separated into luminal B HER2+, luminal B HER-, and luminal A tumorsLegend: Luminal B/HER2+ tumors developed first at a significantly earlier age than luminal A tumors (P < 0.01). Luminal B/HER2- were found next, but the age distribution was not significantly different than for luminal A tumors (P = 0.19)Back to article page