Mammario-arterial anastomosis versus aorto-arterial anastomosis as proximal anastomotic sites in coronary artery bypass surgery for patients with multivessel disease

To investigate the benefits and harms of using the left mammary artery compared with the ascending aorta as the anastomotic site for second choice arterial graft in coronary artery bypass surgery in patients with multivessel disease.

This is a protocol.

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