Long-term results of percutaneous closure of patent ductus arteriosus associated with unilateral lack of a pulmonary artery To The Editor, "Long-term effects of percutaneous closure of patent ductus arteriosus associated with unilateral lack of a pulmonary artery," by Mei Jin MD et al. 1 was carefully reviewed. It was a delight to read such a well-written and well-summarized article, and we applaud the author's achievement. The authors have done a good job of reviewing
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