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[Preprint]. 2023 Feb 3:2023.02.01.526649. [Version 1] doi: 10.1101/2023.02.01.526649

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Figure 5. — The pericardium is a thin tough membrane enclosing the heart. Using tissue forceps gently grasp the pericardium and then use the tip of iridectomy or iris scissors to perforate it. Once perforated, peel it up, away from the heart.