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In the article entitled "Necrobiotic Xanthogranuloma" published in the January Archives, four numbers each were listed under the wrong columns in Table 3 on page 97. Under the subheading "Bone marrow examination," for the numbers listed for "Plasmacytosis/plasmaproliferative disorders," "Myeloma," "Lymphoproliferative disorders," and "Nondiagnostic," the ellipses should be switched with the numbers, ie, the numbers should be listed under "No. With Abnormal Results" for "World Literature" and "Mayo Clinic Population, Rochester, Minn," respectively.