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Cytofluorimetric analysis of Rituximab, HMW-IT, and LMW-IT binding on Raji (CD20+) (a) and MOLT-4 (CD20−) (b) cells. Grey histograms indicate the cells incubated without the mAb or immunotoxins. The fluorescence intensity, evaluated as FITC-A mean value, is also reported in the table (c).
