Heinz-Wolfram Bernd, Marita Ziepert, Christoph Thorns, Wolfram Klapper, Hans-Heinrich Wacker, Michael Hummel, Harald Stein, Martin-Leo Hansmann, German Ott, Andreas Rosenwald, Hans-Konrad Müller-Hermelink, Thomas F. E. Barth, Peter Möller, Sergio B. Cogliatti, Michael Pfreundschuh, Norbert Schmitz, Lorenz Trümper, Silvia Höller, Markus Löffler, Alfred C. Feller. Loss of HLA-DR expression and immunoblastic morphology predict adverse outcome in diffuse large B-cell lymphoma – analyses of cases from two prospective randomized clinical trials. Haematologica 2009;94(11):1569-1580; https://doi.org/10.3324/haematol.2009.008862.