CD6 and polycystic ovary syndrome: Decreased PCOS risk was linked to CXCL11 (C-X-C motif chemokine 11, OR = 0.930, 95% CI: 0.890–0.970; IVW-false discovery rate [FDR] P = 4.85 × 10−4) and CD6 (T-cell surface glycoprotein CD6 isoform, OR = 0.730, 95% CI: 0.890–0.970; IVW-FDR P = .008).