Successful Therapy of Crohn's Disease–Associated Pulmonary Necrobiotic Nodules on Ustekinumab Therapy. (6th March 2020) - Ganzleben, Ingo; Hirschmann, Simon; Köhler, Julia; Fuchs, Florian S.; Rieker, Ralf J.; Baer, Eva; Klenske, Entcho; Nagore, Daniel; Neurath, Markus F.; Atreya, Raja