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Tissue biodistribution. Value and error bars = mean and standard deviation (n = 3–4). (a) Graph shows values for blood (Bl), bone (Bo), brain (Br), heart (H), intestine (I), kidney (K), liver (Li), lungs (Lu), muscle (M), pancreas (P), skin (Sk), spleen (Sp), stomach (St), and tumor (T) at 1 hour after injection. (b) Graph shows tumor-to-muscle and tumor-to-blood ratios. ** = P < .05.
