Fractional flow reserve (FFR) has been well validated as a modality for evaluating myocardial ischemia. demonstrating the superiority of FFR-guided percutaneous coronary intervention (PCI) over conventional angiography-guided PCI. As a result. the strategy for coronary artery bypass grafting (CABG) is shifting toward FFR guidance. https://pipingrockers.shop/product-category/cla/