Phuoc Duong(Alder Hey Children’s Hospital) : CT/MRI preprocedural evaluation

Kothandam Sivakumar(The Madras Medical Mission) : TEE assessment for selection and exclusion

Saleha Kabir(Evelina Children's Hospital) : TEE procedural assessment and guidance

Kevin Walsh(Our Lady's Children's Hospital) : Procedure step by step

Younes Boudjemline(Hôpital Necker-Enfants Malades) : Technical modifications I

Daniel Levi(Ronald Reagan UCLA Medical Center) : Technical modifications II

Eric Rosenthal(Guy's and St Thomas' NHS Foundation Trust) : Borderline defects – to close or not to close?

Sophia Yong(Evelina Children's Hospital) : Medium term follow up