Decrease in Kidney Function on Once-daily Extended-release Tacrolimus after Heart Transplantation—A Real-world Single-center Observational Experience - Haurand, J. M. S.; Scheiber, D.; Naguib, D.; Hettlich, V. H.; Lichtenberg, A.; Kelm, M.; Polzin, A.; Boeken, U. (The Thoracic and Cardiovascular Surgeon, 2025)