Necrotizing Enterocolitis

• IWK Health — Halifax, Nova Scotia, Canada
• Norfolk & Norwich University Hospitals NHS Foundation Trust (Norfolk & Norwich University Hospital) — Norwich, England, United Kingdom
• The Hillingdon Hospitals NHS Foundation Trust (Hillingdon Hospital) — Hillingdon, UK, United Kingdom
• Barts Health NHS Trust (3 Hospitals: Royal London Hospital, Whipps Cross Hospital, Newham General Hospital) — London, UK, United Kingdom

• Arkansas Children's Hospital — Little Rock, Arkansas, United States
• University of Arkansas for Medical Sciences — Little Rock, Arkansas, United States
• Yale-New Haven Hospital — New Haven, Connecticut, United States
• BayCare Health System-St. Joseph's Women's Hospital — Tampa, Florida, United States

• Boston Children's Hospital — Boston, Massachusetts, United States

• Rigshospitalet — Copenhagen, Denmark

• Baskent University — Ankara, Turkey (Türkiye)

• CHU Amiens — Amiens, France

• University Southampton NHS Foundation Trust — Southampton, Hampshire, United Kingdom

• Karolinska University Hospital — Solna, Stockholm County, Sweden

Not specified

Not specified