Tumor size (T1a, b, c) was also correlated with high Ki-67 index (defined as ≥ 14%, 37.9%, 45.8%, 56.2%, p = 0.017) and chances of receiving chemotherapy (20.4%, 35.2%, 57.3%, p < 0.001) and targeted therapy. The gene discussed is MKI67; the disease is neoplasm.