1 Executive Advisor, Cardiovascular Center, St. Luke's International Hospital, Tokyo, Japan. (Email: kniwa@aol.com).
2 Professor of Internal Medicine/Cardiology, Department of Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University Munich, Munich, Germany. (Email: Kaemmerer@dhm.mhn.de).
3 Clinic of Cardiology, University Clinic Hamburg-Eppendorf, Hamburg, Germany. (Email: kodolitsch@uke.de).