目的评估左听诊三角切口（ATT）与后外侧切口（PLT）下动脉导管未闭（PDA）缝扎术的疗效。
Objective To compare the curative effect of PDA surgical ligation between left Ausculatry triangle thoracotomy(ATT) and Posterolateral incision(PLT).
目的推荐一种经听诊三角的肌肉非损伤性开胸术。
Objective To recommend the technique of muscle-sparing thoracotomy through the auscultatory triangle.
目的推荐一种经听诊三角的肌肉非损伤性开胸术。
Objective To recommend the technique of muscle-sparing thoracotomy through the auscultatory triangle.
应用推荐