Affiliation: | (1) Department of Pediatric Cardiology and Bioengineering, University Hospital, Kiel, Federal Republic of Germany;(2) Department of Pediatrics, University Hospital, Kiel, Federal Republic of Germany;(3) Department of Cardiovascular Surgery, University Hospital, Kiel, Federal Republic of Germany;(4) Abteilung Kinderkardiologie und Biomedizinische Technik, Schwanenweg 20, D-2300 Kiel 1, Federal Republic of Germany |