Guest Editors: Yskert von Kodolitsch (Clinic of Cardiology, University Clinic Hamburg-Eppendorf, Hamburg, Germany), Harald Kaemmerer (German Heart Center Munich, Munich, Germany) and Koichiro Niwa (Cardiovascular Center, St Luke’s International Hospital, Japan)

Guest Editors: Christian Apitz (Division of Pediatric Cardiology, University Children's Hospital, Ulm, Germany) and Astrid Lammers (Division of Paediatric Cardiology, University Hospital Muenster, Muenster, Germany)

Guest Editor: Roland Hetzer (Heart Institute in Cottbus and Cardio Centrum Berlin, Berlin, Germany)

Guest Editors: Deborah Kwon (Heart and Vascular Institute, Cleveland Clinic, USA), Bo Xu (Heart and Vascular Institute, Cleveland Clinic, USA) and Rhonda Miyasaka (Cleveland Clinic Foundation, USA)

Guest Editors: Sanjeeva Kalva (Massachusetts General Hospital, Boston, MA, USA) and Marcin Kolber (UT Southwestern Medical Center, Dallas, TX, USA)