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Radioactivity in the heart muscle (18F-FDG) and heart chamber blood (64Cu-liposomes). Statistical significances are shown: asterisk, 18F-FDG vs 64Cu-liposomes; plus sign, 64Cu-liposomes 0 vs 24 h; single symbol, p < 0.05; double symbols, p < 0.01; triple symbols, p < 0.001.
