Natural evolution of ductus arteriosus with noninterventional conservative management in extremely preterm infants born at 23-28 weeks of gestation

• Se In Sung ,

  Contributed equally to this work with: Se In Sung, Yun Sil Chang

  Roles Conceptualization, Formal analysis, Validation, Writing – original draft

  Affiliation Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

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• Yun Sil Chang ,

  Contributed equally to this work with: Se In Sung, Yun Sil Chang

  Roles Conceptualization, Formal analysis, Writing – original draft

  Affiliation Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

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• Jisook Kim,

  Roles Data curation, Methodology, Writing – review & editing

  Affiliation Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

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• Jin Hwa Choi,

  Roles Data curation, Methodology, Writing – review & editing

  Affiliation Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

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• So Yoon Ahn,

  Roles Investigation, Supervision, Writing – review & editing

  Affiliation Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

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• Won Soon Park

  Roles Conceptualization, Supervision, Writing – review & editing

  * E-mail: wonspark@skku.edu, ws123.park@samsung.com

  Affiliation Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

  http://orcid.org/0000-0002-8245-4692

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