We found that the association of HLA-Bw4 with psoriasis, after adjustment with HLA-C*06:02, was driven by HLA-Bw4-80I and not by HLA-Bw4-80T (Figure 3; see Supplementary Table 2 for full results of models not adjusted for HLA-Cw6). Here, HLA-C is linked to psoriasis.