RAD52 and adenoid cystic carcinoma: The association of RAD52-rs3748522 with SGC was strongest for the mucoepidermoid carcinoma subtype (OR = 2.21, 95% CI: 1.55–3.15), reaching Bonferroni-adjusted significance; the association of XRCC4-rs13180356 with SGC was strongest for the adenoid cystic carcinoma subtype (OR = 0.60, 95% CI: 0.42–0.87).