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An error occurred in the Topics in Radiology entitled "Diagnostic X-ray Procedures and Risk of Leukemia, Lymphoma, and Multiple Myeloma," published in the March 13 issue of The Journal (1991;265:1290-1294). On page 1291 in the "Statistical Procedures" section, the sentence in lines 5 through 10 should have read as follows: "Subjects were distributed over five categories of cumulative bone marrow doses, and exposure scores of 0 through 4 were assigned based on nominal dose categories of 0.01 Gy [not 0.001 Gy]."
Incorrect Dose Category. JAMA. 1991;265(21):2810. doi:10.1001/jama.1991.03460210056027