Phenotypic characteristics of cell lines derived from disseminated cancer cells in bone marrow of patients with solid epithelial tumors: establishment of working models for human micrometastases. - Putz,E.; Witter,K.; Offner,S.; Stosiek,P.; Zippelius,A.; Johnson,J.; Zahn,R.; Riethmuller,G.; Pantel,K. (Cancer Res, 1999)