Receptor Tyrosine Kinase Inhibitor Nintedanib as Treatment Option in Bronchiolitis Obliterans after Lung Transplantation - Mauer, J.; Kuckhahn, A.; Distler, J.; Spriewald, B.; Ramsperger-Gleixner, M.; Ensminger, S.; Weyand, M.; Heim, C. (The Thoracic and Cardiovascular Surgeon, 2019)