HLA-DRB1 and myeloid sarcoma: Table 1 shows the distribution of alleles in two common SNPs in the vitamin D-binding protein gene (rs7041 and rs4588), HLA-DRB1*15:01 (rs3135388), 25OHD levels, cumulative UV dose and the proportions of genetic ancestry in the three racial/ethnic groups, along with demographic characteristics, prevalence of MS risk factors and selected factors that influence 25OHD levels.