Borchmann P, Morschhauser F, Parry A, Schnell R, Harousseau J, Gisselbrecht C, Rudolph C, Wilhelm M, Gunther H, Pfreundschuh D, Camboni G, Engert A. Phase-II study of the new aza-anthracenedione, BBR 2778, in patients with relapsed aggressive non-Hodgkin’s lymphomas. Haematologica 2003; 88(8):888-894.