Atrial Septal Defect

• Hospital Pequeno Príncipe — Curitiba, Brazil
• Santa Casa de Misericórdia de Porto Alegre — Porto Alegre, Brazil
• HCOR - Associação Beneficente Síria — São Paulo, Brazil
• Hospital Beneficência Portuguesa — São Paulo, Brazil

• Chaowu Yan — Beijing, Beijing Municipality, China

• G.V.M.Carint Hospital — Myszków, Poland
• Centre for Invasive Cardiology, Electrotherapy and Angiology G.V.M.Carint-Oswiecim — Oświęcim, Poland
• Subcarpathian Centre for Cardiovascular Intervention G.V.M.Carint -Sanok — Sanok, Poland
• Polish-American Heart Clinics, Heart and Vascular Center in Tychy, American Heart of Poland Group — Tychy, Poland

• Asan Medical Center — Seoul, South Korea

Not specified

Not specified

• Chongqing Liangjiang New Area Hospital of Traditional Chinese Medicine — Chongqing, Chongqing Municipality, China
• Shenzhen People's Hospital — Shenzhen, Guangdong, China
• Shijiazhuang People's Hospital — Shijiazhuang, Hebei, China
• The Third Affiliated Hospital of Hebei Medical University — Shijiazhuang, Hebei, China

• Division of Cardiology, Yonsei University Health System, Yonsei University College of Medicine — Seoul, South Korea

• Toronto General Hospital — Toronto, Ontario, Canada

• Children's Heart Centre at Lund's University Hospital — Lund, Skåne County, Sweden