Patients with breast cancer were intrinsically grouped according to the expression of ER, PR, Her2, and Ki67 [22, 23] into Luminal A-like (N = 497), Luminal B-like (N = 497), Her2 enriched (N = 497), and TNBC subtypes (N = 497). The gene discussed is MKI67; the disease is breast carcinoma.