TNFRSF11A and esophageal squamous cell carcinoma: A significantly increased risk of ESCC associated with the RANK rs1805034 T>C polymorphism was evident among male patients (CC vs. TT: adjusted OR  = 1.89, 95% CI  = 1.16–3.08, p = 0.011) (TC/CC vs. TT, adjusted OR  = 1.38, 95% CI  = 1.05–1.81, p = 0.022) (CC vs. TT/TC, adjusted OR  = 1.68, 95% CI  = 1.05–2.69, p = 0.031).