1. In memorium: Jorgen Rygaard (1934-2016) Father of patient derived mouse models of cancer and modern cancer research. 2. The revival of patient-derived mouse models of cancer: way back to the future3. Patient-derived xenograft models for human cancer, The Freiburg experience 4. From Ectopic to Orthotopic Tumor Grafting Sites: Evidence for a Critical Role of the Host Tissue Microenvironment for the Actual Expression of the Malignant Phenotype5. The Effects of the Organ Microenvironment on Metastatic-Cell... Mehr