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FIGURE 3. Frequency distribution shows number of patients for whom radiation-absorbed dose to red marrow (RM) by imaging was calculated to be lower (negative) or higher (positive) than dose derived from blood clearance data. Determination of RM dose by external scintigraphy was possible in 12 of 14 patients given 90Y-hMN-14. Data from a 16-y-old subject were also not included in this analysis of adult patients. In this subject, dose derived from imaging study was 52.5% less than that derived from blood clearance data.
