Multicentric, randomized, open, prospective clinical trial for theinvestigation of efficacy and tolerance and adverse drug reactions of HELIXOR ® A in comparison to Lentinan in patients with non small cell lung cancer, breast cancer or ovarian cancer - Klose, Christina; Jensen, Katrin; Herzig, Michaela; Mansmann, Ulrich (Forschungsberichte der Abteilung Medizinische Biometrie, Universität Heidelberg, 2003)