Group A tumors independently correlate with specific clinicopathologic features: Tall cell or classic papillary carcinoma histotype (Table S2a; p < 0.0001 and p = 0.001, respectively), BRAF V600E mutation (Table S2a; p < 0.0001), lymph node metastases (Table S2a; p = 0.028), and intermediate as opposed to low American Thyroid Association (ATA) risk group (Table S2a; p < 0.0001). The gene discussed is BRAF; the disease is papillary carcinoma.