Address reprint requests and corresponding to:
Jieh-Neng Wang, M.D., Ph.D., Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, No. 138,
Sheng-Li Road, Tainan 70421, Taiwan.
Tel: +886-6-2353535 ext 4187
E-mail: jiehneng@mail.ncku.edu.tw
Word count: 1955 words excluding abstract, references, figures, and table
Key words: patent ductus arteriosus, transcatheter closure, bronchopulmonary dysplasia