COVID-19 Infection after Pediatric Heart Transplantation in Germany, Austria, and Switzerland - Working Group Thoracic Organ Transplantation DGPK; Ulrich, S.; Balmer, C.; Becker, K.; Bruhs, J.; Danne, F.; Debus, V.; Dewein, L.; Doll, U.; Fleck, T.; Grafmann, M.; Greil, S.; Grosser, U.; Saur, P.; Skrzypek, S.; Steinmetz, M. (The Thoracic and Cardiovascular Surgeon, 2022)