title: Metastasis: differences between cancer cells in primary and secondary tumors.
mesh_terms: D000818:Animals; D000951:Antigens, Neoplasm / Q000032:analysis; D000970:Antineoplastic Agents / Q000627:therapeutic use; D002478:Cells, Cultured; D006801:Humans; D007621:Karyotyping; D051379:Mice; D009362:Neoplasm Metastasis; D009374:Neoplasms, Experimental / Q000188:drug therapy / Q000276:immunology / Q000503:physiopathology / Q000648:ultrastructure; D051381:Rats
chemical_list: D000951:Antigens, Neoplasm; D000970:Antineoplastic Agents