TERT and cancer: Pooled analysis demonstrated that the TERT variant rs2736098 G > A polymorphism was significantly correlated with cancer risk in all populations (A vs. G: OR = 1.134, 95% CI = 1.051–1.224, P = 0.001; AA vs. GG: OR = 1.280, 95% CI = 1.087–1.508, P = 0.003; GA vs. GG: OR = 1.125, 95% CI = 1.020–1.240, P = 0.018; GA/AA vs. GG: OR = 1.159, 95% CI = 1.047–1.283, P = 0.004).