Department of Ultrasound Affiliated Hangzhou First People’s Hospital Zhejiang University School of Medicine Hangzhou 310006 Zhejiang Province China;
Department of Ultrasound Affiliated Hangzhou First People’s Hospital Zhejiang University School of Medicine Hangzhou 310006 Zhejiang Province China;
Department of Ultrasound Affiliated Hangzhou First People’s Hospital Zhejiang University School of Medicine Hangzhou 310006 Zhejiang Province China;
Department of Ultrasound Affiliated Hangzhou First People’s Hospital Zhejiang University School of Medicine Hangzhou 310006 Zhejiang Province China;
Department of Pediatrics Affiliated Hangzhou First People’s Hospital Zhejiang University School of Medicine Hangzhou 310006 Zhejiang Province China;
Department of Pediatrics Affiliated Hangzhou First People’s Hospital Zhejiang University School of Medicine Hangzhou 310006 Zhejiang Province China;
Patent ductus arteriosus; Cardiopulmonary; Ultrasonography; Lung ultrasound score; Very low-weight neonates; Preterm;