Correction: In the Clinic: Monoclonal Gammopathy of Undetermined Significance

In the article by Gonsalves and Rajkumar (1), a reader identified an error in Table 1, International Myeloma Working Group Diagnostic Criteria for Classification of the Subtypes of MGUS and Their Estimated Risks for Progression. In the Risk for Progression column, the text for IgM MGUS and non-IgM MGUS should be switched so that “1.5% risk per year for progression to Waldenström macroglobulinemia . . .“ corresponds with IgMMGUS, and “1% risk per year for progression tomultiple myeloma . . .“ corresponds with non-IgM MGUS. The article has been corrected online.