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Figure 6 Endogenous endothelial alkaline phosphatase staining (original magnification x100) of representative sections from hibernating myocardium treated with sham redo-thoracotomy (A), transmyocardial implant (TMI) (B), and holmium yttrium:aluminum:garnet transmyocardial laser revascularization (TMR) (C). Note the significantly greater blue-staining intensity, characteristic of endothelial cells, in (C) compared with (B) and (A). The number of blue-staining blood vessels is greater both within and adjacent to the TMR channel remnant (C) compared with that seen with TMI (B).
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