Li et al. studied 8 VDR SNPs (TaqI, FokI, ApaI, BsmI, rs11574010 (Cdx2), rs739837 (BglI), rs757343 (Tru9I), and rs11168267) in 100 SS patients and 100 Han Chinese HC; results showed that SS risk was higher in ApaI SNP AA + AC genotype carriers than in CC genotype carriers (dominant model). Here, CDX2 is linked to synovial sarcoma.