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| Efficacy of Ultra-early Pulmonary Surfactant Combined with Mechanical Ventilation in the Treatment of Neonatal Respiratory Distress Syndrome |
| LIU Huiyu, WU Yancheng, HUANG Qiaoyu, ZHANG Wei |
| First-author's address: Department of Child Healthcare, Ningde Maternal and Child Health Hospital, Ningde 352100, China |
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Received: 24 November 2025
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