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Figure 1 Coronary angiogram performed immediately prior to euthanasia (six months post-transmyocardial implant) in a representative animal demonstrating experimental model with location of hydraulic occluder (radiolucent and not seen) and ultrasonic flow probe around proximal left circumflex (LCx) coronary artery indicated. Note normal left anterior descending (LAD) coronary artery, high-grade stenosis of proximal LCx, and multiple transmyocardial implants in lateral and posteroinferior walls of the left ventricle.