Risk factors that affect the degree of bronchopulmonary dysplasia: Comparison by severity in the same gestational age

• Sung-Ha Kim,

  Roles Data curation, Writing – original draft

  Affiliation Department of Pediatrics, Kangnam Sacred Heart Hospital, Hallym University Medical Center, Seoul, Korea

  ⨯
• Yea Seul Han,

  Roles Methodology, Writing – review & editing

  Affiliations Department of Pediatrics, Kangnam Sacred Heart Hospital, Hallym University Medical Center, Seoul, Korea, Division of Neonatology, Department of Pediatrics, Samsung Medical Center, Seoul, Korea

  ⨯
• Jiyoung Chun,

  Roles Conceptualization, Data curation, Methodology

  Affiliation Department of Pediatrics, Kangnam Sacred Heart Hospital, Hallym University Medical Center, Seoul, Korea

  ⨯
• Myung Hee Lee,

  Roles Data curation, Formal analysis, Methodology, Software, Validation

  Affiliation Department of Statistics and Data Center, Samsung Medical Center, Seoul, Korea

  ⨯
• Tae-Jung Sung

  Roles Conceptualization, Supervision, Writing – review & editing

  * E-mail: neosung@hallym.or.kr

  Affiliation Department of Pediatrics, Kangnam Sacred Heart Hospital, Hallym University Medical Center, Seoul, Korea

  http://orcid.org/0000-0002-5406-5550

  ⨯