Experience of patent ductus arteriosus ligation during extracorporeal membrane oxygenation treatment in newborns with severe respiratory failure due to persistent pulmonary hypertension: a single-center retrospective study. - Zhang, Qi-Liang; Liu, Yi-Nan; Zeng, Ya-Ting; Zheng, Yi-Rong; Chen, Qiang (Italian Journal of Pediatrics, 2024)