Coronary Artery Morbidity and Assessment Practice in Childhood and Adolescence after Arterial Switch operation (ASO) in Germany: An Analysis from the OptAHF Study Investigators - Lammers, A. E.; Szardenings, C.; Kaleschke, G.; Kehl, H. G.; Diller, G.; Martens, S.; Baumgartner, H. (The Thoracic and Cardiovascular Surgeon, 2023)