Patent Ductus Arteriosus

• AP Hospital Europeen G Pompidou and Hospital Necker — Paris, France
• Deutsches Herzzentrum Berlin — Berlin, Germany
• Herzzentrum Leipzig GmbH — Leipzig, Germany
• Deutsches Herzzentrum München — Munich, Germany

• Wolfson Children's Hospital — Jacksonville, Florida, United States
• University of Florida — Jacksonville, Florida, United States

• S. Orsola-Malpighi University Hospital — Bologna, Emilia-Romagna, Italy

• Albany Medical Center — Albany, New York, United States

• Sant'Orsola-Malpighi University Hospital — Bologna, Emilia-Romagna, Italy

• University of Florida — Gainesville, Florida, United States
• Boston Children's Hospital — Boston, Massachusetts, United States

• Peking University Third Hospital — Beijing, China

• Children's Hospital and Health Center — San Diego, California, United States
• University of California San Francisco Hospital — San Francisco, California, United States
• The Children's Hospital - Denver — Aurora, Colorado, United States
• Alfred I. DuPont Hospital for Children -Nemours Cardiac Center — Wilmington, Delaware, United States

Not specified

• University of California San Diego — San Diego, California, United States
• Sharp Mary Birch Hospital for Women and Newborns — San Diego, California, United States
• University of California San Francisco — San Francisco, California, United States
• Mednax Neonatology of San Jose/Pediatrix Medical Group — San Jose, California, United States