Authors: Berr, F Wiedmann, M Tannapfel, A Halm, U Kohlhaw, KR Schmidt, F Wittekind, C Hauss, J Mossner, J

Citation: F. Berr et al., Photodynamic therapy for advanced bile duct cancer: Evidence for improved palliation and extended survival, HEPATOLOGY, 31(2), 2000, pp. 291-298