PCN446 A CASE STUDY OF BREAST CANCER TREATMENT DEMONSTRATING THE IMPACT OF TIME DEPENDENT TRANSITION PROBABILITY ADJUSTMENTS ON COMPARATIVE COST EFFECTIVENESS. - Jahn, B.; Kurzthaler, C.; Chhatwal, J.; Elbasha, E.; Conrads-Frank, A.; Rochau, U.; Sroczynski, G.; Urach, C.; Bundo, M.; Popper, N.; Siebert, U. (Value in Health, 2019)