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Ovine model of myocardial regeneration after MI The fetal sheep undergoes left anterolateral thoracotomy (A). A miniature Finochietto rib retractor is used to best expose the left ventricle. The LAD is created by ligating the LAD and D2 at a point 40% of the distance between the apex and the base (as shown in B), as well as any necessary diagonals, to induce a 20–25% apical infarct. LAD, left anterior descending artery.
