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FIG. 5. Nanogram-equivalents of total 125I-Apo2L/TRAIL measured in tissues and tumor. Total radioactivity of 125I-Apo2L/TRAIL in kidney, liver, lung, spleen, tumor, and plasma was measured at 5 min, 15 min, 30 min, 1 h, 2 h, and 4 h after dosing with 125I-Apo2L/TRAIL (A) or 125I-Apo2L/TRAIL plus unlabeled Apo2L/TRAIL (B). Nanogram-equivalents of 125I-Apo2L/TRAIL were calculated as described under Materials and Methods and are shown on the y-axis.
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