Internal mammary artery harvesting with its distal end occluded

To the Editor:We have read with great interest the comment of Chen et al"What can we learn from cases of internal mammary artery damage in coronary artery bypass graft ", The advice that the authors propose in relation to the internal mammary artery (IMA) harvesting is very useful because they are based on a 20-year experience in more than 10,000 patients.