On page 124 in the 7 July 2016 issue, the second sentence of the Figure 2 legend should read, “HLA-DPB1 ΔFD ≤2.665 and >2.665 are shown in dashed and solid lines, respectively, with 95% confidence limits in shades of gray above and below each curve.” The error has been corrected in the online version, which now differs from the print version.

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