Milić, B. .; Ilić, T.; Popović, M.; Savić, A. .; Jocić, T.; Petrović, L. Development of Crohn´s Disease in a Patient With Ankylosing Spondylitis and Essential Thrombocythemia Following Etanercept Therapy - A Case Report and the Review of the Literature. Vojnosanit Pregl 2021, 78 (6). https://doi.org/10.2298/VSP190619119M.